User:Nescientist/Damage

Damage (Japanese: ダメージ damage) is a loss of a Pokémon's HP that happens as the result of a special or physical attack used against it by another Pokémon.

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• Damage calculation
  • Example
  • Moves that have a special damage calculation
• In other languages
• Links

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Damage calculation

Except for moves that have a special damage calculation, the damage dealt when a Pokémon uses a damaging move depends on its level, its effective Attack or Special Attack stat, the opponent's effective Defense or Special Defense stat, and the move's effective power. In addition, various factors of damage modification may also affect the damage dealt.

More precisely, damage is calculated as a:File:DamageCalc.png Damage = \left(\frac{\left( \frac{2 \times Level}{5} + 2\right) \times Power \times A / D}{50} + 2\right) \times Modifier

where

• Level is the level of the attacking Pokémon.
• A is the effective Attack stat of the attacking Pokémon if the used move is a physical move, or the effective Special Attack stat of the attacking Pokémon if the used move is a special move.
• D is the effective Defense stat of the defending Pokémon if the used move is a physical move or a special move that uses the defending Pokémon's Defense stat, or the effective Special Defense of the defending Pokémon if the used move is an other special move.
• Power is the effective power of the used move.

and Modifier is

a:File:ModifierCalc.png Modifier = Targets \times Weather \times Critical \times random \times STAB \times Type \times Burn \times other

where

• Targets is 0.75 if the move has more than one target, and 1 otherwise.
• Weather is 1.5 if a Water-type move is being used during rain or a Fire-type move during harsh sunlight, and 0.5 if a Water-type move is used during harsh sunlight or a Fire-type move during rain, and 1 otherwise.
• Critical is 1.5 for a critical hit in Generation VI, 2 for a critical hit in Generations I-V, and 1 otherwise.

random is a random integer percentage from 0.85 to 1.00

Generation III onward Uniformly distributed random integer percentage between 0.85 and 1.00 Generations I-II Integer percentage created by generating a random uniformly distributed number between 217 and 255 (inclusive), multiplying it by 100, and then dividing the result by 255 (and rounding down the result).

• STAB is the same-type attack bonus. This is equal to 1.5 if the move's type matches any of the user's types, 2 if the user of the move additionally has Adaptability, and 1 if otherwise.
• Type is the type effectiveness. This can be either 0, 0.25, 0.5, 1, 2, or 4 depending on both the move's and defending Pokémon's types.
• Burn is 0.5 if the attacker is burned, its Ability is not Guts, and the used move is a physical move, and 1 otherwise.

other is 1 in most cases, and a different multiplier in special cases

Cause Value Detail Dark Aura ~1.33 * If any active Pokémon has this Ability and the move used is Dark-type Earthquake 2 If the used move, and the defender is in the semi-invulnarable turn of Dig Electric Terrain 1.5 If the attacker is affected by it, and the move used is Electric-type Expert Belt ~1.2 If held by the attacker and the move was super effective (Type > 1) Fairy Aura ~1.33 * If any active Pokémon has this Ability and the move used is Fairy-type Filter 1.5 If the defender has this Ability and the move was super effective (Type > 1) Friend Guard 0.75 If a partner of the defender has this Ability Fur Coat 0.5 If the defender has this Ability and the move used is physical Grassy Terrain 1.5 If the attacker is affected by it, and the move used is Grass-type Light Screen 0.5 * If set on the defender's side, the move used is special, not a critical hit, and the user's Ability is not Infiltrator Misty Terrain 0.5 If the defender is affected by it, and the move used is Dragon-type Multiscale 0.5 If the defender has this Ability and is at full health Life Orb ~1.3 If held by the attacker Metronome >1 1 + (~20% per successfully used successive move) if held by the attacker, but no more than 2 Parental Bond 0.5 If the attacker has this Ability, and this is the second hit Reflect 0.5 * If set on the defender's side, the move used is physical, not a critical hit, and the user's Ability is not Infiltrator Sniper 1.5 If the attacker has this Ability and the move was a critical hit Solid Rock 1.5 If the defender has this Ability and the move was super effective (Type > 1) Steamroller 2 If the used move, and the defender has previously used Minimize Stomp 2 If the used move, and the defender has previously used Minimize Surf 2 If the used move, and the defender is in the semi-invulnarable turn of Dive Tinted Lens 2 If the attacker has this Ability and the move was not very effective (Type < 1) Type-resist berries 0.5 If held by the defender, the move was of the resisted type and super effective

During the calculation, any operations are carried out on integers internally, such that effectively each division is a truncated integer division (rounding towards zero, cutting off any decimals), and any decimals are also cut off after each multiplication operation. If the calculation yields 0 before applying the other factor, it is set to a value of 1 instead; it is therefore possible to deal zero damage when other is less than 1.

Example

Imagine a level 75 Glaceon that does not suffer a burn and holds no item with an effective Attack stat of 123 uses Ice Fang (an Ice-type physical move with a power of 65) against a Garchomp with an effective Defense stat of 163 in Generation VI, and does not land a critical hit. Then, the move will receive STAB, because Glaceon's Ice type matches the move's: STAB = 1.5. Additionally, Garchomp is Dragon/Ground, and therefore has a double weakness to the move's ice type: Type = 4. All other (non-random) factors of Modifier will be 1. This effectively gives

a:File:ModifierCalcExample.png Modifier = 1 \times 1 \times 1 \times (rand \in [0.85,1.00]) \times 1.5 \times 4 \times 1 \times 1 = rand \in [5.10,6.00]

When also plugging in Glaceon's effective Attacks stat and Garchomp's effective Defense stat, the whole damage formula gives

a:File:DamageCalcExample1 Damage = \left(\frac{\left( \frac{2 \times 75}{5} + 2\right) \times 65 \times 123 / 163}{50} + 2\right) \times Modifier

a:File:DamageCalcExample2 = rand \in [168,196]

That means Ice Fang will do between 168 and 198 damage, depending on luck.

If the same Glaceon holds a Muscle Band and its Ice Fang lands a critical hit against Garchomp, it will be Critical = 1.5, effectively giving

a:File:ModifierCalcExample2.png Modifier = 1 \times 1 \times 1.5 \times (rand \in [0.85,1.00]) \times 1.5 \times 4 \times 1 \times 1 = rand \in [7.65,9.00]

Furthermore, Ice Fang's effective power will be boosted by the Muscle Band by (approximately) 10% to become 71, leading the whole formula to give

a:File:DamageCalcExample3 Damage = \left(\frac{\left( \frac{2 \times 75}{5} + 2\right) \times 71 \times 123 / 163}{50} + 2\right) \times Modifier

a:File:DamageCalcExample4 = rand \in [268,324]

That means Ice Fang will now do between 268 and 324 damage, depending on luck.

Moves that have a special damage calculation

These moves do not use the standard damage formula, but instead deal damage calculated in special ways:

• Bide deals double the damage done to the user in Bide's idling period
• Counter deals double the damage done to the user before
• Dragon Rage deals 40 damage
• Endeavor deals damage dependend on the user's and the target's current HP
• Final Gambit deals damage equal to the user's current HP
• Metal Burst deals 1.5x the damage done to the user before
• Mirror Coat deals double the damage done to the user before
• Night Shade deals damage equal to the user's level
• One-hit knockout moves deal damage equal to the target's current HP
• Psywave deals damage dependend on the user's level
• Seismic Toss deals damage equal to the user's level
• Sonic Boom deals 20 damage
• Super Fang deals damage equal to 50% of the target's current HP

In other languages

Language		Title
Cantonese Chinese		伤害
French		Dégâts
German		Schaden
Italian		Danno
Korean		데미지를
Spanish		Daño

Links

• The Complete Damage Formula for Black & White (Smogon University)
• Battle Mechanics (The Cave of Dragonflies)