Legendary Arena

Legendary Arena

The Legendary Arena (Japanese: レジェンドバトル Legend Battle) is a special battle area in Pokémon Masters EX. Introduced in Version 1.10.5, it features battles against a boss Legendary Pokémon. The player can battle the boss with multiple teams using up to 30 sync pairs. Sync pairs that have participated once cannot be used in a team again. The boss has three HP bars and its attack pattern, moves, and passive skills change with each bar. The boss's HP and status conditions are carried over between battles.

The player is able to reset their progress at any point. This will reset the current challenge status, and hence reset the opponent's HP and status conditions, as well as any sync pairs used. The player's progress is also automatically reset after a week has elapsed since the last attempt.

Arena rewards are given when the player depletes one of the boss's HP bars to 0; repeatable General rewards consist of one 1★ Level-Up Manual per HP bar. Medals can also be earned by completing specific missions.

Starting from September 8, 2022, all of the battles are permanently available.

Legendary Arena: Entei

Entei was the first Legendary Arena boss Pokémon and could be battled from June 11 to 25, 2020, October 5 to 17, 2020, January 14 to February 1, 2021, June 9 to 23, 2021, and October 4 to 18, 2021. It could also be battled in the Legendary Gauntlet from January 20 to February 2, 2022, and July 25 to August 19, 2022.

It is weak to Water-type moves. Entei sets permanent field effects, such as Physical/Special Damage Reduction, during the fight. It will also raise its critical-hit rate which can't be lowered due to Steady Aim passive skill.

Some of Entei's notable passive skills are:
Bar 3:
Piercing Gaze: moves never miss.
Hostile Environment 10: its Heat Wave and Sacred Fire will always burn the target.
On a Roll 9: its Rock Smash and Iron Tail will always lower target's Defence.

Battle	Difficulty	Arena Rewards
		Reduce HP bar 1 to 0%	Reduce HP bar 2 to 0%	Reduce HP bar 3 to 0%
		First time
Entei's Challenge: Part 1	Normal	Gems ×50 3★ Level-Up Manual ×20	Gems ×50 Elite Four Notes ×10	Gems ×100 4★ Power-Up
Entei's Challenge: Part 2	Hard	Gems ×50 3★ Level-Up Manual ×30	Gems ×50 Elite Four Notes ×15	Gems ×100 5★ Power-Up
Entei's Challenge: Part 3	Very Hard	Gems ×100 3★ Level-Up Manual ×50	Gems ×50 Elite Four Notes ×20	Gems ×200 5★ Power-Up

Missions

Mission	Reward
Complete the following Legendary Arena with 30 or fewer sync pair(s): Entei Challenge: Part 1	Entei's Challenger
Complete the following Legendary Arena with 15 or fewer sync pair(s): Entei Challenge: Part 1	Co-op Sync Orb ×500
Complete the following Legendary Arena with 30 or fewer sync pair(s): Entei Challenge: Part 2	Entei's Foe
Complete the following Legendary Arena with 15 or fewer sync pair(s): Entei Challenge: Part 2	Co-op Sync Orb ×500
Complete the following Legendary Arena with 30 or fewer sync pair(s): Entei Challenge: Part 3	Entei's Bane
Complete the following Legendary Arena with 15 or fewer sync pair(s): Entei Challenge: Part 3	Co-op Sync Orb ×1,000
Complete the following Legendary Arena with 12 or fewer sync pair(s): Entei Challenge: Part 3	Gems ×300
Complete all the above missions	Queller of Molten Flames

Legendary Arena: Cobalion

Cobalion was the second Legendary Arena boss Pokémon and could be battled from July 7 to 21, 2020, October 17 to 29, 2020, May 20 to June 3, 2021, September 10 to 24, 2021, and May 10 to 24, 2022. It could also be battled in the Legendary Gauntlet from January 20 to February 2, 2022.

It is weak to Fire-type moves. Cobalion is resistant to all damage thanks to Healthy Advantage 8 passive skill. This protection can be negated by inflicting Cobalion with a status condition, although its resistance to any status condition increases each time Cobalion recovers from one, until it becomes immune.

Battle	Difficulty	Arena Rewards
		Reduce HP bar 1 to 0%	Reduce HP bar 2 to 0%	Reduce HP bar 3 to 0%
		First time
Cobalion's Challenge: Part 1	Normal	Gems ×50 3★ Level-Up Manual ×25	Gems ×50 Elite Four Notes ×10	Gems ×100 4★ Power-Up
Cobalion's Challenge: Part 2	Hard	Gems ×50 3★ Level-Up Manual ×30	Gems ×50 Elite Four Notes ×15	Gems ×100 5★ Power-Up
Cobalion's Challenge: Part 3	Very Hard	Gems ×100 3★ Level-Up Manual ×50	Gems ×100 Elite Four Notes ×20	Gems ×200 5★ Power-Up

Missions

Mission	Reward
Complete the following Legendary Arena with 30 or fewer sync pair(s): Cobalion's Challenge: Part 1	Cobalion's Challenger
Complete the following Legendary Arena with 15 or fewer sync pair(s): Cobalion's Challenge: Part 1	Co-op Sync Orb ×500
Complete the following Legendary Arena with 30 or fewer sync pair(s): Cobalion's Challenge: Part 2	Cobalion's Foe
Complete the following Legendary Arena with 15 or fewer sync pair(s): Cobalion's Challenge: Part 2	Co-op Sync Orb ×500
Complete the following Legendary Arena with 30 or fewer sync pair(s): Cobalion's Challenge: Part 3	Cobalion's Bane
Complete the following Legendary Arena with 15 or fewer sync pair(s): Cobalion's Challenge: Part 3	Co-op Sync Orb ×1,000
Complete the following Legendary Arena with 12 or fewer sync pair(s): Cobalion's Challenge: Part 3	Gems ×300
Complete all the above missions	Bringer of Cobalt Justice

Legendary Arena: Latios

Latios was the third Legendary Arena boss Pokémon and could be battled from August 20 to September 2, 2020, October 29 to November 11, 2020, December 28, 2020, to January 11, 2021, July 27 to August 10, 2021, and December 24, 2021, to January 8, 2022. It could also be battled in the Legendary Gauntlet from May 24 to June 7, 2022.

It is weak to Dragon-type moves while on its first and second HP bars, and weak to Ice-type moves while on its third. Latios is also joined by Dragonite and Salamence which are weak to Dragon-type moves. While on its second and third HP bar, Latios will have the Defense Crush 9 and Mind Games 9 Passive Skill which always lower it's target's defenses for every successful hit.

Battle	Difficulty	Arena Rewards
		Reduce HP bar 1 to 0%	Reduce HP bar 2 to 0%	Reduce HP bar 3 to 0%
		First time
Latios's Challenge: Part 1	Normal	Gems ×50 3★ Level-Up Manual ×25	Gems ×50 Elite Four Notes ×10	Gems ×100 4★ Power-Up
Latios's Challenge: Part 2	Hard	Gems ×50 3★ Level-Up Manual ×40	Gems ×50 Elite Four Notes ×15	Gems ×100 5★ Power-Up
Latios's Challenge: Part 3	Very Hard	Gems ×100 3★ Level-Up Manual ×60	Gems ×100 Elite Four Notes ×20	Gems ×200 5★ Power-Up

Missions

Mission	Reward
Complete the following Legendary Arena with 30 or fewer sync pair(s): Latios's Challenge: Part 1	Latios's Challenger
Complete the following Legendary Arena with 15 or fewer sync pair(s): Latios's Challenge: Part 1	Co-op Sync Orb ×500
Complete the following Legendary Arena with 30 or fewer sync pair(s): Latios's Challenge: Part 2	Latios's Foe
Complete the following Legendary Arena with 15 or fewer sync pair(s): Latios's Challenge: Part 2	Co-op Sync Orb ×500
Complete the following Legendary Arena with 30 or fewer sync pair(s): Latios's Challenge: Part 3	Latios's Bane
Complete the following Legendary Arena with 15 or fewer sync pair(s): Latios's Challenge: Part 3	Co-op Sync Orb ×1,000
Complete the following Legendary Arena with 12 or fewer sync pair(s): Latios's Challenge: Part 3	Gems ×300
Complete all the above missions	Azure Eon Breaker

Legendary Arena: Azelf

Azelf was the fourth Legendary Arena boss Pokémon and could be battled from September 16 to 30, 2020, May 6 to 20, 2021 and April 21 to May 5, 2022. It could also be battled in the Legendary Gauntlet from January 20 to February 2, 2022.

It is weak to Bug-type moves. Azelf also has passive skills that greatly reduce physical damage it takes during the first 50% of each HP bar and special damage during the second 50%, with these extending to sync moves while on Azelf's third bar. On the very hard difficulty and while the third HP bar, Azelf will have the Piercing Gaze passive skill which allows its moves to always hit.

Battle	Difficulty	Arena Rewards
		Reduce HP bar 1 to 0%	Reduce HP bar 2 to 0%	Reduce HP bar 3 to 0%
		First time
Azelf's Challenge: Part 1	Normal	Gems ×50 3★ Level-Up Manual ×20	Gems ×50 Co-op Sync Orb ×500	Gems ×100 4★ Power-Up
Azelf's Challenge: Part 2	Hard	Gems ×50 3★ Level-Up Manual ×30	Gems ×50 Co-op Sync Orb ×500	Gems ×100 5★ Power-Up Ticket ×20
Azelf's Challenge: Part 3	Very Hard	Gems ×100 3★ Level-Up Manual ×50	Gems ×100 Co-op Sync Orb ×1,000	Gems ×200 5★ Power-Up Ticket ×20

Missions

Mission	Reward
Complete the following Legendary Arena with 30 or fewer sync pair(s): Azelf's Challenge: Part 1	Azelf's Challenger
Complete the following Legendary Arena with 15 or fewer sync pair(s): Azelf's Challenge: Part 1	Skill Sphere ×30
Complete the following Legendary Arena with 30 or fewer sync pair(s): Azelf's Challenge: Part 2	Azelf's Foe
Complete the following Legendary Arena with 15 or fewer sync pair(s): Azelf's Challenge: Part 2	Skill Sphere ×30
Complete the following Legendary Arena with 30 or fewer sync pair(s): Azelf's Challenge: Part 3	Azelf's Bane
Complete the following Legendary Arena with 15 or fewer sync pair(s): Azelf's Challenge: Part 3	Strike Move Candy Coin ×1
Complete the following Legendary Arena with 12 or fewer sync pair(s): Azelf's Challenge: Part 3	Gems ×300
Complete all the above missions	Crusher of Willpower

Legendary Arena: Tapu Bulu

Tapu Bulu was the fifth Legendary Arena boss Pokémon and could be battled from November 16 to 30, 2020, August 5 to 19, 2021, February 7 to 21 and June 9 to 23, 2022. It could also be battled in the Legendary Gauntlet from July 25 to August 19, 2022.

It is weak to Flying-type moves while on its first and third HP bars, and weak to Poison-type moves while on its second. It activates the field effect of Grassy Terrain at the beginning of each HP bar and each time it uses its Sync Move; Grassy Terrain increases the power of Grass-type moves and restores HP when using a Grass-type move. Grassy Terrain can be countered by inflicting Poison or by using "interference" status conditions, such as flinching, confusion, or trapped, although Tapu Bulu will increase its resistance to the latter each time it recovers, until it becomes immune.

Battle	Difficulty	Arena Rewards
		Reduce HP bar 1 to 0%	Reduce HP bar 2 to 0%	Reduce HP bar 3 to 0%
		First time
Tapu Bulu's Challenge: Part 1	Normal	Gems ×50 3★ Level-Up Manual ×20	Gems ×50 Co-op Sync Orb ×500	Gems ×100 4★ Power-Up
Tapu Bulu's Challenge: Part 2	Hard	Gems ×50 3★ Level-Up Manual ×30	Gems ×50 Co-op Sync Orb ×500	Gems ×100 5★ Power-Up Ticket ×20
Tapu Bulu's Challenge: Part 3	Very Hard	Gems ×100 3★ Level-Up Manual ×50	Gems ×100 Co-op Sync Orb ×1,000	Gems ×200 5★ Power-Up Ticket ×20

Missions

Mission	Reward
Complete the following Legendary Arena with 30 or fewer sync pair(s): Tapu Bulu's Challenge: Part 1	Tapu Bulu's Challenger
Complete the following Legendary Arena with 15 or fewer sync pair(s): Tapu Bulu's Challenge: Part 1	5★ Scout Ticket ×1
Complete the following Legendary Arena with 30 or fewer sync pair(s): Tapu Bulu's Challenge: Part 2	Tapu Bulu's Foe
Complete the following Legendary Arena with 15 or fewer sync pair(s): Tapu Bulu's Challenge: Part 2	5★ Scout Ticket ×1
Complete the following Legendary Arena with 30 or fewer sync pair(s): Tapu Bulu's Challenge: Part 3	Tapu Bulu's Bane
Complete the following Legendary Arena with 15 or fewer sync pair(s): Tapu Bulu's Challenge: Part 3	Support Move Candy Coin ×1
Complete the following Legendary Arena with 12 or fewer sync pair(s): Tapu Bulu's Challenge: Part 3	Gems ×300
Complete all the above missions	Ruiner of Abundance

Legendary Arena: Regirock

Regirock was the sixth Legendary Arena boss Pokémon and could be battled from December 12 to 20, 2020, June 25 to July 9, 2021, November 19 to December 3, 2021, and April 7 to 21, 2022. It could also be battled in the Legendary Gauntlet from May 24 to June 7, 2022.

It is weak to Grass-type moves while on its first HP bar, and weak to Steel-type moves while on its second and third. During the battle, any Pokémon receiving a critical hit will have their Defense lowered; for Regirock, this is the only way to reduce any of its stats. After dropping below 50% on the first and second HP bars, Regirock uses Iron Defense to raise its Defense and block critical hits for a period of time. While on its second and third HP bar, Regirock will also increase it's resistance to any status interference (flinching, confusion or trapped) each time it recovers from one until it becomes immune.

Battle	Difficulty	Arena Rewards
		Reduce HP bar 1 to 0%	Reduce HP bar 2 to 0%	Reduce HP bar 3 to 0%
		First time
Regirock's Challenge: Part 1	Normal	Gems ×50 3★ Level-Up Manual ×20	Gems ×50 Co-op Sync Orb ×500	Gems ×100 4★ Power-Up
Regirock's Challenge: Part 2	Hard	Gems ×50 3★ Level-Up Manual ×30	Gems ×50 Co-op Sync Orb ×500	Gems ×100 5★ Power-Up Ticket ×20
Regirock's Challenge: Part 3	Very Hard	Gems ×100 3★ Level-Up Manual ×50	Gems ×100 Co-op Sync Orb ×1,000	Gems ×200 5★ Power-Up Ticket ×20

Missions

Mission	Reward
Complete the following Legendary Arena with 30 or fewer sync pair(s): Regirock's Challenge: Part 1	Regirock's Challenger
Complete the following Legendary Arena with 15 or fewer sync pair(s): Regirock's Challenge: Part 1	5★ Scout Ticket ×1
Complete the following Legendary Arena with 30 or fewer sync pair(s): Regirock's Challenge: Part 2	Regirock's Foe
Complete the following Legendary Arena with 15 or fewer sync pair(s): Regirock's Challenge: Part 2	5★ Scout Ticket ×1
Complete the following Legendary Arena with 30 or fewer sync pair(s): Regirock's Challenge: Part 3	Regirock's Bane
Complete the following Legendary Arena with 15 or fewer sync pair(s): Regirock's Challenge: Part 3	Tech Move Candy Coin ×1
Complete the following Legendary Arena with 12 or fewer sync pair(s): Regirock's Challenge: Part 3	Gems ×300
Complete all the above missions	Toppler of the Megalith

Legendary Arena: Cresselia

Cresselia was the seventh Legendary Arena boss Pokémon and could be battled from February 18 to March 4, 2021, August 20 to September 4, 2021, March 10 to 24, 2022 and July 5 to 19, 2022.

It is weak to Dark-type moves. While on its first HP bar, Cresselia will boost its stats with Double Team and Calm Mind and use Special Damage Reduction and its Brain Barrier 8 passive skill to reduce special damage; on harder difficulties, it will use its Go Viral 9 passive skill to allow its Thunder Wave to paralyze the player's entire team. On its second HP bar, it will switch to using Physical Damage Reduction and its Brawn Barrier 8 passive skill to reduce physical damage, and it will also add Stat Reduction Defense to its side of the field; on harder difficulties, it will use its Go Viral 9 passive skill to allow its Toxic to badly poison the player's entire team, and on Very Hard, it will gradually heal itself. On its third HP bar, Cresselia will continue its Physical Damage Reduction and Stat Reduction Defense, and it will add Status Move Defense and Status Condition Defense to its side of the field. After the first and second bars are depleted, Cresselia will use the Sure Hit Next and Critical Hit Next effects together with moves that damage the player's whole party.

Battle	Difficulty	Arena Rewards
		Reduce HP bar 1 to 0%	Reduce HP bar 2 to 0%	Reduce HP bar 3 to 0%
		First time
Cresselia's Challenge: Part 1	Normal	Gems ×50 3★ Level-Up Manual ×20	Gems ×50 Co-op Sync Orb ×500	Gems ×100 4★ Power-Up
Cresselia's Challenge: Part 2	Hard	Gems ×50 3★ Level-Up Manual ×30	Gems ×50 Co-op Sync Orb ×500	Gems ×100 5★ Power-Up Ticket ×20
Cresselia's Challenge: Part 3	Very Hard	Gems ×100 3★ Level-Up Manual ×50	Gems ×100 Co-op Sync Orb ×1,000	Gems ×200 5★ Power-Up Ticket ×20

Missions

Mission	Reward
Complete the following Legendary Arena with 30 or fewer sync pair(s): Cresselia's Challenge: Part 1	Cresselia's Challenger
Complete the following Legendary Arena with 15 or fewer sync pair(s): Cresselia's Challenge: Part 1	5★ Scout Ticket ×2
Complete the following Legendary Arena with 30 or fewer sync pair(s): Cresselia's Challenge: Part 2	Cresselia's Foe
Complete the following Legendary Arena with 15 or fewer sync pair(s): Cresselia's Challenge: Part 2	5★ Scout Ticket ×2
Complete the following Legendary Arena with 30 or fewer sync pair(s): Cresselia's Challenge: Part 3	Cresselia's Bane
Complete the following Legendary Arena with 15 or fewer sync pair(s): Cresselia's Challenge: Part 3	Strike Move Candy Coin ×1
Complete the following Legendary Arena with 12 or fewer sync pair(s): Cresselia's Challenge: Part 3	Gems ×300
Complete all the above missions	Crescent Moon Shaper

Legendary Arena: Latias

Latias was the eighth Legendary Arena boss Pokémon and could be battled from March 31 to April 14, 2021, November 9 to 23, 2021, and June 27 to July 11, 2022. It could also be battled in the Legendary Gauntlet from March 24 to April 7, 2022.

It is joined by Flygon and Alakazam which are weak to Dragon-type and Dark-type moves respectively. It is weak to Dragon-type moves while on its first HP bar, and weak to Fairy-type moves while on its second and third. Latias's Fluid Fortification passive skill reduces any damage it takes the more its stats are raised, but lowering its stats causes it to take more damage. While on its second HP bar, Latias will also gain or lose evasiveness if it dodged or failed to dodge, respectively, incoming attacks.

Battle	Difficulty	Arena Rewards
		Reduce HP bar 1 to 0%	Reduce HP bar 2 to 0%	Reduce HP bar 3 to 0%
		First time
Latias's Challenge: Part 1	Normal	Gems ×50 3★ Level-Up Manual ×20	Gems ×50 Co-op Sync Orb ×500	Gems ×100 4★ Power-Up
Latias's Challenge: Part 2	Hard	Gems ×50 3★ Level-Up Manual ×30	Gems ×50 Co-op Sync Orb ×500	Gems ×100 5★ Power-Up Ticket ×20
Latias's Challenge: Part 3	Very Hard	Gems ×100 3★ Level-Up Manual ×50	Gems ×100 Co-op Sync Orb ×1,000	Gems ×200 5★ Power-Up Ticket ×20

Missions

Mission	Reward
Complete the following Legendary Arena with 30 or fewer sync pair(s): Latias's Challenge: Part 1	Latias's Challenger
Complete the following Legendary Arena with 15 or fewer sync pair(s): Latias's Challenge: Part 1	5★ Scout Ticket ×2
Complete the following Legendary Arena with 30 or fewer sync pair(s): Latias's Challenge: Part 2	Latias's Foe
Complete the following Legendary Arena with 15 or fewer sync pair(s): Latias's Challenge: Part 2	5★ Scout Ticket ×2
Complete the following Legendary Arena with 30 or fewer sync pair(s): Latias's Challenge: Part 3	Latias's Bane
Complete the following Legendary Arena with 15 or fewer sync pair(s): Latias's Challenge: Part 3	Support Move Candy Coin ×1
Complete the following Legendary Arena with 12 or fewer sync pair(s): Latias's Challenge: Part 3	Gems ×300
Complete all the above missions	Crimson Eon Breaker

Legendary Arena: Tornadus

Tornadus was the ninth Legendary Arena boss Pokémon and could be battled from April 22 to May 6, 2021, September 21 to October 5, 2021, and December 9 to 23, 2021. The missions were available from September 8 to 22, 2022. It could also be battled in the Legendary Gauntlet from May 24 to June 7, 2022.

It is weak to Electric-type moves. Normally, Tornadus is resistant to physical damage while on its first HP bar, to special damage while on its second, and all damage while on its third, and it is also protected from critical hits while on the third HP bar. These protections can be negated by inflicting Tornadus with a status condition, although it is immune to all except Paralysis. If paralyzed, Tornadus will use Toxic one time early in the fight; otherwise, it will use Rain Dance instead. It has a chance of curing its paralysis after using a move with Self-Cleanse passive skill. Tornadus resists status changes, such as flinching, confusion, or trapped, with its resistance increasing each time it recovers from one, until it becomes immune. On the very hard difficulty and while on the third HP bar, Tornadus will have the Piercing Gaze passive skill which allows its moves to always hit.

Battle	Difficulty	Arena Rewards
		Reduce HP bar 1 to 0%	Reduce HP bar 2 to 0%	Reduce HP bar 3 to 0%
		First time
Tornadus's Challenge: Part 1	Normal	Gems ×50 3★ Level-Up Manual ×20	Gems ×50 Co-op Sync Orb ×500	Gems ×100 4★ Power-Up
Tornadus's Challenge: Part 2	Hard	Gems ×50 3★ Level-Up Manual ×30	Gems ×50 Co-op Sync Orb ×500	Gems ×100 5★ Power-Up Ticket ×20
Tornadus's Challenge: Part 3	Very Hard	Gems ×100 3★ Level-Up Manual ×50	Gems ×100 Co-op Sync Orb ×1,000	Gems ×200 5★ Power-Up Ticket ×20

Missions

Mission	Reward
Complete the following Legendary Arena with 30 or fewer sync pair(s): Tornadus's Challenge: Part 1	Tornadus's Challenger
Complete the following Legendary Arena with 15 or fewer sync pair(s): Tornadus's Challenge: Part 1	5★ Scout Ticket ×2
Complete the following Legendary Arena with 30 or fewer sync pair(s): Tornadus's Challenge: Part 2	Tornadus's Foe
Complete the following Legendary Arena with 15 or fewer sync pair(s): Tornadus's Challenge: Part 2	5★ Scout Ticket ×2
Complete the following Legendary Arena with 30 or fewer sync pair(s): Tornadus's Challenge: Part 3	Tornadus's Bane
Complete the following Legendary Arena with 15 or fewer sync pair(s): Tornadus's Challenge: Part 3	Tech Move Candy Coin ×1
Complete the following Legendary Arena with 12 or fewer sync pair(s): Tornadus's Challenge: Part 3	Gems ×300
Complete all the above missions	Tornado Tamer

Legendary Arena: Moltres

Moltres was the tenth Legendary Arena boss Pokémon and could be battled from July 12 to 26, 2021 and February 24 to March 10, 2022. It could also be battled in the Legendary Gauntlet from March 24 to April 7, 2022.

It is weak to Rock-type moves while on its first and third HP bars, and weak to Water-type moves while on its second. All weather conditions remain in effect until replaced with different weather; Moltres has a number of passive skills that activate during sunny weather, which it summons at the beginning of each HP bar and the halfway point of the second and third bars. Moltres can be flinched, but its resistance to flinching increases each time it recovers until it reaches 9.

Battle	Difficulty	Arena Rewards
		Reduce HP bar 1 to 0%	Reduce HP bar 2 to 0%	Reduce HP bar 3 to 0%
		First time
Moltres's Challenge: Part 1	Normal	Gems ×50 3★ Level-Up Manual ×20	Gems ×50 Co-op Sync Orb ×500	Gems ×100 4★ Power-Up
Moltres's Challenge: Part 2	Hard	Gems ×50 3★ Level-Up Manual ×30	Gems ×50 Co-op Sync Orb ×500	Gems ×100 5★ Power-Up Ticket ×20
Moltres's Challenge: Part 3	Very Hard	Gems ×100 3★ Level-Up Manual ×50	Gems ×100 Co-op Sync Orb ×1,000	Gems ×200 5★ Power-Up Ticket ×20

Missions

Mission	Reward
Complete the following Legendary Arena with 30 or fewer sync pair(s): Moltres's Challenge: Part 1	Moltres's Challenger
Complete the following Legendary Arena with 15 or fewer sync pair(s): Moltres's Challenge: Part 1	5★ Scout Ticket ×2
Complete the following Legendary Arena with 30 or fewer sync pair(s): Moltres's Challenge: Part 2	Moltres's Foe
Complete the following Legendary Arena with 15 or fewer sync pair(s): Moltres's Challenge: Part 2	5★ Scout Ticket ×2
Complete the following Legendary Arena with 30 or fewer sync pair(s): Moltres's Challenge: Part 3	Moltres's Bane
Complete the following Legendary Arena with 15 or fewer sync pair(s): Moltres's Challenge: Part 3	Strike Move Candy Coin ×1
Complete the following Legendary Arena with 12 or fewer sync pair(s): Moltres's Challenge: Part 3	Gems ×300
Complete all the above missions	Molten Wing Extinguisher

Legendary Arena: Uxie

Uxie was the eleventh Legendary Arena boss Pokémon and could be battled from October 22 to November 5, 2021, and January 7 to 21, 2022. It could also be battled in the Legendary Gauntlet from March 24 to April 7, 2022, and July 25 to August 19, 2022.

It is weak to Ghost-type moves. While on its first HP bar, the Healthy Advantage passive skill reduces damage while Uxie is unaffected by status conditions; on the second bar, the Acute Senses passive skill reduces damage unless Uxie is affected by status changes (e.g., flinching or restrained); and both passive skills take affect when Uxie is on its third HP bar. Additionally, passive skills increase Uxie's resistance to a status condition or interference condition (flinching, confusion, or trapped) each time it recovers from one, until it becomes immune. On Very Hard difficulty, Uxie will also apply Special Damage Reduction to its side of the field while on its first bar and Physical Damage Reduction while on its third bar.

Battle	Difficulty	Arena Rewards
		Reduce HP bar 1 to 0%	Reduce HP bar 2 to 0%	Reduce HP bar 3 to 0%
		First time
Uxie's Challenge: Part 1	Normal	Gems ×50 3★ Level-Up Manual ×20	Gems ×50 Co-op Sync Orb ×500	Gems ×100 4★ Power-Up
Uxie's Challenge: Part 2	Hard	Gems ×50 3★ Level-Up Manual ×30	Gems ×50 Co-op Sync Orb ×500	Gems ×100 5★ Power-Up Ticket ×20
Uxie's Challenge: Part 3	Very Hard	Gems ×100 3★ Level-Up Manual ×50	Gems ×100 Co-op Sync Orb ×1,000	Gems ×200 5★ Power-Up Ticket ×20

Missions

Mission	Reward
Complete the following Legendary Arena with 30 or fewer sync pair(s): Uxie's Challenge: Part 1	Uxie's Challenger
Complete the following Legendary Arena with 15 or fewer sync pair(s): Uxie's Challenge: Part 1	5★ Scout Ticket ×2
Complete the following Legendary Arena with 30 or fewer sync pair(s): Uxie's Challenge: Part 2	Uxie's Foe
Complete the following Legendary Arena with 15 or fewer sync pair(s): Uxie's Challenge: Part 2	5★ Scout Ticket ×2
Complete the following Legendary Arena with 30 or fewer sync pair(s): Uxie's Challenge: Part 3	Uxie's Bane
Complete the following Legendary Arena with 15 or fewer sync pair(s): Uxie's Challenge: Part 3	Support Move Candy Coin ×1
Complete the following Legendary Arena with 12 or fewer sync pair(s): Uxie's Challenge: Part 3	Gems ×300
Complete all the above missions	Claimer of Knowledge

Legendary Arena: Terrakion

Terrakion was the twelfth Legendary Arena boss Pokémon and could be battled starting from March 10, 2023.

It is weak to Psychic-type moves. Terrakion's passive skills increase its damage when its Attack and Sp. Atk are raised, which it can accomplish through moves and passive skills. While on its second and third HP bar, the Clear Advantage passive skill reduces damage while there's no field effect on Terrakion's side of the field, such as weather, terrain, Type Zone, or Type Damage Field.

Some of Terrakion's notable passive skills are:
Bar 2:
Clear Advantage 4: Reduces damage taken by 40% when there's no field effect affecting it.
Bar 3:
Clear Advantage 8: Reduces damage taken by 80% when there's no field effect affecting it.

Battle	Difficulty	Arena Rewards
		Reduce HP bar 1 to 0%	Reduce HP bar 2 to 0%	Reduce HP bar 3 to 0%
		First time
Terrakion's Challenge: Part 1	Normal	Gems ×50 3★ Level-Up Manual ×20	Gems ×50 Co-op Sync Orb ×500	Gems ×100 4★ Power-Up
Terrakion's Challenge: Part 2	Hard	Gems ×50 3★ Level-Up Manual ×30	Gems ×50 Co-op Sync Orb ×500	Gems ×100 5★ Power-Up Ticket ×20
Terrakion's Challenge: Part 3	Very Hard	Gems ×100 3★ Level-Up Manual ×50	Gems ×100 Co-op Sync Orb ×1,000	Gems ×200 5★ Power-Up Ticket ×20

Missions

Mission	Reward
Complete the following Legendary Arena with 30 or fewer sync pair(s): Terrakion's Challenge: Part 1	Terrakion's Challenger
Complete the following Legendary Arena with 15 or fewer sync pair(s): Terrakion's Challenge: Part 1	5★ Scout Ticket ×2
Complete the following Legendary Arena with 30 or fewer sync pair(s): Terrakion's Challenge: Part 2	Terrakion's Foe
Complete the following Legendary Arena with 15 or fewer sync pair(s): Terrakion's Challenge: Part 2	5★ Scout Ticket ×2
Complete the following Legendary Arena with 30 or fewer sync pair(s): Terrakion's Challenge: Part 3	Terrakion's Bane
Complete the following Legendary Arena with 15 or fewer sync pair(s): Terrakion's Challenge: Part 3	Tech Move Candy Coin ×1
Complete the following Legendary Arena with 12 or fewer sync pair(s): Terrakion's Challenge: Part 3	Gems ×300
Complete all the above missions	Bringer of Solid Justice

Legendary Arena: Raikou

Raikou was the thirteenth Legendary Arena boss Pokémon and could be battled starting from July 19, 2023.

It is joined by Electrode and Ampharos, all of which are weak to Ground-type moves.

Battle	Difficulty	Arena Rewards
		Reduce HP bar 1 to 0%	Reduce HP bar 2 to 0%	Reduce HP bar 3 to 0%
		First time
Raikou's Challenge: Part 1	Normal	Gems ×50 3★ Level-Up Manual ×20	Gems ×50 Co-op Sync Orb ×500	Gems ×100 4★ Power-Up
Raikou's Challenge: Part 2	Hard	Gems ×50 3★ Level-Up Manual ×30	Gems ×50 Co-op Sync Orb ×500	Gems ×100 5★ Power-Up Ticket ×20
Raikou's Challenge: Part 3	Very Hard	Gems ×100 3★ Level-Up Manual ×50	Gems ×100 Co-op Sync Orb ×1,000	Gems ×200 5★ Power-Up Ticket ×20

Missions

Mission	Reward
Complete the following Legendary Arena with 30 or fewer sync pair(s): Raikou's Challenge: Part 1	Raikou's Challenger
Complete the following Legendary Arena with 15 or fewer sync pair(s): Raikou's Challenge: Part 1	5★ Scout Ticket ×2
Complete the following Legendary Arena with 30 or fewer sync pair(s): Raikou's Challenge: Part 2	Raikou's Foe
Complete the following Legendary Arena with 15 or fewer sync pair(s): Raikou's Challenge: Part 2	5★ Scout Ticket ×2
Complete the following Legendary Arena with 30 or fewer sync pair(s): Raikou's Challenge: Part 3	Raikou's Bane
Complete the following Legendary Arena with 15 or fewer sync pair(s): Raikou's Challenge: Part 3	Strike Move Candy Coin ×1
Complete the following Legendary Arena with 12 or fewer sync pair(s): Raikou's Challenge: Part 3	Gems ×300
Complete all the above missions	Tamer of the Rumbling Thunder

Legendary Arena: Registeel

Registeel was the fourteenth Legendary Arena boss Pokémon and could be battled starting from October 10, 2023.

Registeel is weak to Fighting-type moves, and it has passive skills that reduce the damage it takes when its Defense or Special Defense is raised, as well as moves and passive skills to raise its Defense and Special Defense. Stat changes to Defense and Special Defense have a greater effect on damage output for both allies and opponents, so lowering Registeel's Defense and Special Defense is the recommended strategy.

In addition, field effects that Registeel puts up, such as Physical Damage Reduction and Special Damage Reduction shields, are permanent unless removed by the player.

Battle	Difficulty	Arena Rewards
		Reduce HP bar 1 to 0%	Reduce HP bar 2 to 0%	Reduce HP bar 3 to 0%
		First time
Registeel's Challenge: Part 1	Normal	Gems ×50 3★ Level-Up Manual ×20	Gems ×50 Co-op Sync Orb ×500	Gems ×100 4★ Power-Up
Registeel's Challenge: Part 2	Hard	Gems ×50 3★ Level-Up Manual ×30	Gems ×50 Co-op Sync Orb ×500	Gems ×100 5★ Power-Up Ticket ×20
Registeel's Challenge: Part 3	Very Hard	Gems ×100 3★ Level-Up Manual ×50	Gems ×100 Co-op Sync Orb ×1,000	Gems ×200 5★ Power-Up Ticket ×20

Missions

Mission	Reward
Complete the following Legendary Arena with 30 or fewer sync pair(s): Registeel's Challenge: Part 1	Registeel's Challenger
Complete the following Legendary Arena with 15 or fewer sync pair(s): Registeel's Challenge: Part 1	5★ Scout Ticket ×2
Complete the following Legendary Arena with 30 or fewer sync pair(s): Registeel's Challenge: Part 2	Registeel's Foe
Complete the following Legendary Arena with 15 or fewer sync pair(s): Registeel's Challenge: Part 2	5★ Scout Ticket ×2
Complete the following Legendary Arena with 30 or fewer sync pair(s): Registeel's Challenge: Part 3	Registeel's Bane
Complete the following Legendary Arena with 15 or fewer sync pair(s): Registeel's Challenge: Part 3	Support Move Candy Coin ×1
Complete the following Legendary Arena with 12 or fewer sync pair(s): Registeel's Challenge: Part 3	Gems ×300
Complete all the above missions	Cutter of Ancient Iron

Event missions

Because the majority of Legendary Arena rewards are first-time completion rewards and cannot be obtained on reruns, event missions were included during the reruns of Legendary Arenas to encourage players to take on the challenge again with certain team restrictions. These missions required players to complete the most difficult version of the Legendary Arena with nine sync pairs or fewer, and at least three sync pairs of those nine had to have a certain theme skill. Players could earn up to 1,000 Gems by completing these missions. Once Legendary Arenas became available permanently, event missions continued to rerun periodically.

Legendary Arena: Raikou was the only Legendary Arena to include event missions at the same time as its debut.

The general structure of Legendary Arena event missions is as follows:

Mission Name	Objective	Reward
Mission 1	Complete Legendary Arena: <Pokémon>'s Challenge: Part 3 with 3 or more sync pairs that share the following theme and with 9 total sync pairs or fewer: • Region theme skill	Gems ×300
Mission 2	Complete Legendary Arena: <Pokémon>'s Challenge: Part 3 with 3 or more sync pairs that share the following theme and with 9 total sync pairs or fewer: • Type theme skill	Gems ×300
Mission 3	Complete Legendary Arena: <Pokémon>'s Challenge: Part 3 with 3 or more sync pairs that share the following theme and with 9 total sync pairs or fewer: • Trainer group theme skill	Gems ×300
Reward for completing all missions		Gems ×100

The only Legendary Arena event missions that did not follow this format exactly were Latias's missions in June and October 2022, which only asked players to use 2 or more sync pairs of the designated region theme skill.

The following table lists all the times Legendary Arena missions have been available, and what theme skills were required:

Arena	Dates	Featured theme skills
		Region	Type	Trainer group
Azelf	May 6 to 20, 2021	Unova	Bug	Gym Leader
Cobalion	May 20 to June 3, 2021	Hoenn	Fire	Gym Leader
Entei	June 9 to 23, 2021	Hoenn	Water	Gym Leader
Regirock	June 25 to July 9, 2021	Sinnoh	Steel	Main Character
Latios	July 27 to August 10, 2021	Hoenn	Dragon	Gym Leader
Tapu Bulu	August 5 to 19, 2021	Unova	Flying	Gym Leader
Cresselia	August 20 to September 4, 2021	Kalos	Dark	Elite Four
Cobalion	September 10 to 24, 2021	Unova	Fire	Gym Leader
Tornadus	September 21 to October 5, 2021	Unova	Electric	Gym Leader
Entei	October 4 to 18, 2021	Kanto	Water	Gym Leader
Latias	November 9 to 23, 2021	Kalos	Fairy	Gym Leader
Regirock	November 19 to December 3, 2021	Sinnoh	Steel	Gym Leader
Tornadus	December 9 to 23, 2021	Unova	Electric	Gym Leader
Latios	December 24, 2021 to January 8, 2022	Hoenn	Dragon	Gym Leader
Uxie	January 7 to 21, 2022	Alola	Ghost	Gym Leader
Tapu Bulu	February 7 to 21, 2022	Unova	Flying	Gym Leader
Moltres	February 24 to March 10, 2022	Kanto	Rock	Gym Leader
Cresselia	March 10 to 24, 2022	Unova	Dark	Elite Four
Regirock	April 7 to 21, 2022	Galar	Steel	Gym Leader
Azelf	April 21 to May 5, 2022	Unova	Bug	Gym Leader
Cobalion	May 10 to 24, 2022	Sinnoh	Fire	Elite Four
Tapu Bulu	June 9 to 23, 2022	Johto	Flying	Gym Leader
Latias	June 27 to July 11, 2022	Galar*	Fairy	Gym Leader
Cresselia	July 5 to 19, 2022	Unova	Dark	Elite Four
Cobalion	August 5 to 19, 2022	Hoenn	Fire	Main Character
Tornadus	September 8 to 22, 2022	Kanto	Electric	Gym Leader
Latias	October 7 to 21, 2022	Hoenn*	Fairy	Main Character
Uxie	October 25 to November 11, 2022	Unova	Ghost	Gym Leader
Azelf	November 9 to 23, 2022	Unova	Bug	Gym Leader
Entei	December 12 to 26, 2022	Kalos	Water	Main Character
Latios	December 21, 2022 to January 4, 2023	Johto	Ice	Gym Leader
Moltres	January 9 to 23, 2023	Kalos	Rock	Elite Four
Tapu Bulu	February 9 to 23, 2023	Unova	Flying	Gym Leader
Tornadus	February 24 to March 10, 2023	Unova	Electric	Gym Leader
Regirock	April 11 to 25, 2023	Kalos	Steel	Main Character
Cresselia	April 26 to May 10, 2023	Hoenn	Dark	Elite Four
Latios	May 10 to 24, 2023	Alola	Ice	Gym Leader
Terrakion	June 6 to 20, 2023	Sinnoh	Psychic	Elite Four
Tapu Bulu	June 29 to July 13, 2023	Hoenn	Flying	Gym Leader
Raikou	July 19 to August 2, 2023	Sinnoh	Ground	Elite Four
Cobalion	July 28 to August 11, 2023	Galar	Fire	Gym Leader

Music

Situation	Song key	Song name	Arrangement
In menu	No. 00037	The Legendary Arena!	Unknown
During battle (Tapu Bulu's Challenge)	No. 07021	Battle! (Tapu) (Pokémon Masters EX Version)	Haruki Yamada (ATTIC INC.)
During battle (Tornadus's Challenge, Terrakion's Challenge, Cobalion's Challenge)	No. 05015	Battle! (Unova Legendary Pokémon) (Pokémon Masters EX Version)	Haruki Yamada (ATTIC INC.)
During battle (Cresselia's Challenge)	No. 04015	Battle! (Cresselia) (Pokémon Masters EX Version)	Haruki Yamada (ATTIC INC.)
During battle (Azelf's Challenge, Uxie's Challenge)	No. 04014	Battle! (Azelf, Mesprit, Uxie) (Pokémon Masters EX Version)	Haruki Yamada (ATTIC INC.)
During battle (Latios's Challenge, Latias's Challenge)	No. 03015	Battle! (Hoenn Legendary Pokémon) (Pokémon Masters EX Version)	Haruki Yamada (ATTIC INC.)
During battle (Registeel's Challenge, Regirock's Challenge)	No. 03016	Battle! (Regirock, Regice, Registeel) (Pokémon Masters EX Version)	Haruki Yamada (ATTIC INC.)
During battle (Entei's Challenge)	No. 02013	Battle! (Entei) (Pokémon Masters EX Version)	Haruki Yamada (ATTIC INC.)
During battle (Raikou's Challenge)	No. 02015	Battle! (Raikou) (Pokémon Masters EX Version)	Haruki Yamada (ATTIC INC.)
During battle (Moltres's Challenge)	No. 01018	Battle! (Kanto Legendary Pokémon) (Pokémon Masters EX Version)	Haruki Yamada (ATTIC INC.)
Song names without a song key listed are unofficial, as they have not been added to the Jukebox.

In other languages

Language Title Chinese Cantonese 傳說對戰 Chyùhnsyut Deuijin Mandarin 傳說對戰 Chuánshuō Duìzhàn French Bataille Légendaire German Legendenkampf Italian Lotta Leggendaria Korean 레전드배틀 Legend Battle Spanish Combate legendario

This article is part of Project Sidegames, a Bulbapedia project that aims to write comprehensive articles on the Pokémon Sidegames.