EX Hidden Legends (Japanese: ADV 4: The Solved Seal) is the name given to an Expansion of cards and Theme Decks for the Pokémon Trading Card Game. It completed transferring all of the Generation III Pokémon into card forms.

Set size

• 102 cards in English release
• 83 cards in Japanese release

Sequence

• 20th English Expansion
• 22nd Japanese Expansion

Release dates

• 16th January 2004 - Japanese Expansion & Half Deck
• 14th June 2004 - English Expansion

Prereleases were held on the weekends of 5th/6th and 12th/13th June 2004.

Trivia

• EX Hidden Legends introduced more dual-type Pokémon, specifically Psychic and Metal.
• This was the first set since Nintendo took over not to include the Dot-Code data strips on cards, therefore the TCG lost the "e" addition to its name. No set since has featured the technology.
• In Japan, this was the last set to use the ADV prefix.
• The names of the Theme Decks are references to Celebi and its role in Pokémon 4Ever, and Jirachi and its role in Jirachi: Wish Maker.
• The reverse-holographic design changed in this set. Instead of the previous "plain" holographic design, the same foil was used with an energy symbol pattern. To further distinguish the reverse-holographics and holographic, the type of the Pokémon was displayed as a faint foil symbol in the attack box. The reverse-holographic versions of the holographic rares also have a foil rarity symbol. The reverse-holographic design has changed with every new Expansion since.
• The secret box-topper for this set is Groudon.
• The Prerelease card for this set is Swalot.

Theme decks

• Forest Guardian
• Wishmaker

Half decks

• Metagross

Card list

English expansion

No.	Card Name	Type	Rarity
1	Banette		File:Rare rare.gifH
2	Claydol		File:Rare rare.gifH
3	Crobat		File:Rare rare.gifH
4	Dark Celebi		File:Rare rare.gifH
5	Electrode		File:Rare rare.gifH
6	Exploud		File:Rare rare.gifH
7	Heracross		File:Rare rare.gifH
8	Jirachi		File:Rare rare.gifH
9	Machamp		File:Rare rare.gifH
10	Medicham		File:Rare rare.gifH
11	Metagross		File:Rare rare.gifH
12	Milotic		File:Rare rare.gifH
13	Pinsir		File:Rare rare.gifH
14	Shiftry		File:Rare rare.gifH
15	Walrein		File:Rare rare.gifH
16	Bellossom		File:Rare rare.gif
17	Chimecho		File:Rare rare.gif
18	Gorebyss		File:Rare rare.gif
19	Huntail		File:Rare rare.gif
20	Masquerain		File:Rare rare.gif
21	Metang		File:Rare rare.gif
22	Ninetales		File:Rare rare.gif
23	Rain Castform		File:Rare rare.gif
24	Relicanth		File:Rare rare.gif
25	Snow-Cloud Castform		File:Rare rare.gif
26	Sunny Castform		File:Rare rare.gif
27	Tropius		File:Rare rare.gif
28	Beldum		File:Rare uncom.gif
29	Beldum		File:Rare uncom.gif
30	Castform		File:Rare uncom.gif
31	Claydol		File:Rare uncom.gif
32	Corsola		File:Rare uncom.gif
33	Dodrio		File:Rare uncom.gif
34	Glalie		File:Rare uncom.gif
35	Gloom		File:Rare uncom.gif
36	Golbat		File:Rare uncom.gif
37	Igglybuff		File:Rare uncom.gif
38	Lanturn		File:Rare uncom.gif
39	Loudred		File:Rare uncom.gif
40	Luvdisc		File:Rare uncom.gif
41	Machoke		File:Rare uncom.gif
42	Medicham		File:Rare uncom.gif
43	Metang		File:Rare uncom.gif
44	Metang		File:Rare uncom.gif
45	Nuzleaf		File:Rare uncom.gif
46	Rhydon		File:Rare uncom.gif
47	Sealeo		File:Rare uncom.gif
48	Spinda		File:Rare uncom.gif
49	Starmie		File:Rare uncom.gif
50	Swalot		File:Rare uncom.gif
51	Tentacruel		File:Rare uncom.gif
52	Baltoy		File:Rare com.gif
53	Baltoy		File:Rare com.gif
54	Beldum		File:Rare com.gif
55	Chikorita		File:Rare com.gif
56	Chinchou		File:Rare com.gif
57	Chinchou		File:Rare com.gif
58	Clamperl		File:Rare com.gif
59	Cyndaquil		File:Rare com.gif
60	Doduo		File:Rare com.gif
61	Feebas		File:Rare com.gif
62	Gulpin		File:Rare com.gif
63	Jigglypuff		File:Rare com.gif
64	Machop		File:Rare com.gif
65	Meditite		File:Rare com.gif
66	Meditite		File:Rare com.gif
67	Minun		File:Rare com.gif
68	Oddish		File:Rare com.gif
69	Plusle		File:Rare com.gif
70	Rhyhorn		File:Rare com.gif
71	Seedot		File:Rare com.gif
72	Shuppet		File:Rare com.gif
73	Snorunt		File:Rare com.gif
74	Spheal		File:Rare com.gif
75	Staryu		File:Rare com.gif
76	Surskit		File:Rare com.gif
77	Tentacool		File:Rare com.gif
78	Togepi		File:Rare com.gif
79	Totodile		File:Rare com.gif
80	Voltorb		File:Rare com.gif
81	Vulpix		File:Rare com.gif
82	Whismur		File:Rare com.gif
83	Zubat		File:Rare com.gif
84	Ancient Technical Machine [Ice]	T	File:Rare uncom.gif
85	Ancient Technical Machine [Rock]	T	File:Rare uncom.gif
86	Ancient Technical Machine [Steel]	T	File:Rare uncom.gif
87	Ancient Tomb	T	File:Rare uncom.gif
88	Desert Ruins	T	File:Rare uncom.gif
89	Island Cave	T	File:Rare uncom.gif
90	Life Herb	T	File:Rare uncom.gif
91	Magnetic Storm	T	File:Rare uncom.gif
92	Steven's Advice	T	File:Rare uncom.gif
93	Groudon ex		File:Rare rare.gifex
94	Kyogre ex		File:Rare rare.gifex
95	Metagross ex		File:Rare rare.gifex
96	Ninetales ex		File:Rare rare.gifex
97	Regice ex		File:Rare rare.gifex
98	Regirock ex		File:Rare rare.gifex
99	Registeel ex		File:Rare rare.gifex
100	Vileplume ex		File:Rare rare.gifex
101	Wigglytuff ex		File:Rare rare.gifex
102	Groudon		File:Rare rare.gifH

Japanese expansion

No.	Card Name	Type	Rarity
1	Zubat		File:Rare com.gif
2	Golbat		File:Rare rare.gif
3	Oddish		File:Rare com.gif
4	Gloom		File:Rare uncom.gif
5	Vileplume ex		File:Rare rare.gifex
6	Pinsir		File:Rare rare.gifH
7	Crobat		File:Rare rare.gifH
8	Bellossom		File:Rare rare.gif
9	Heracross		File:Rare rare.gifH
10	Seedot		File:Rare com.gif
11	Surskit		File:Rare com.gif
12	Masquerain		File:Rare rare.gifH
13	Gulpin		File:Rare com.gif
14	Swalot		File:Rare rare.gif
15	Tropius		File:Rare rare.gif
16	Vulpix		File:Rare com.gif
17	Ninetales		File:Rare rare.gifH
18	Ninetales ex		File:Rare rare.gifex
19	Sunny Castform		File:Rare rare.gif
20	Tentacool		File:Rare com.gif
21	Tentacruel		File:Rare rare.gif
22	Staryu		File:Rare com.gif
23	Corsola		File:Rare uncom.gif
24	Feebas		File:Rare uncom.gif
25	Milotic		File:Rare rare.gifH
26	Rain Castform		File:Rare rare.gif
27	Snow-Cloud Castform		File:Rare rare.gif
28	Snorunt		File:Rare com.gif
29	Glalie		File:Rare rare.gif
30	Spheal		File:Rare com.gif
31	Sealeo		File:Rare rare.gif
32	Walrein		File:Rare rare.gifH
33	Clamperl		File:Rare uncom.gif
34	Huntail		File:Rare rare.gifH
35	Gorebyss		File:Rare rare.gifH
36	Relicanth		File:Rare rare.gifH
37	Luvdisc		File:Rare rare.gif
38	Regice ex		File:Rare rare.gifex
39	Kyogre ex		File:Rare rare.gifex
40	Voltorb		File:Rare com.gif
41	Electrode		File:Rare rare.gifH
42	Chinchou		File:Rare com.gif
43	Lanturn		File:Rare rare.gif
44	Starmie	File:Physic-attack.png	File:Rare rare.gif
45	Claydol	File:Physic-attack.png	File:Rare rare.gifH
46	Shuppet	File:Physic-attack.png	File:Rare com.gif
47	Banette	File:Physic-attack.png	File:Rare rare.gifH
48	Chimecho	File:Physic-attack.png	File:Rare rare.gifH
49	Machop		File:Rare com.gif
50	Machoke		File:Rare uncom.gif
51	Machamp		File:Rare rare.gifH
52	Rhyhorn		File:Rare com.gif
53	Rhydon		File:Rare rare.gif
54	Medicham		File:Rare rare.gifH
55	Regirock ex		File:Rare rare.gifex
56	Groudon ex		File:Rare rare.gifex
57	Jigglypuff		File:Rare com.gif
58	Wigglytuff ex		File:Rare rare.gifex
59	Doduo		File:Rare com.gif
60	Dodrio		File:Rare rare.gif
61	Igglybuff		File:Rare uncom.gif
62	Whismur		File:Rare com.gif
63	Loudred		File:Rare rare.gif
64	Exploud		File:Rare rare.gifH
65	Spinda		File:Rare rare.gifH
66	Castform		File:Rare uncom.gif
67	Nuzleaf	File:Dark-attack.png	File:Rare uncom.gif
68	Shiftry	File:Dark-attack.png	File:Rare rare.gifH
69	Beldum		File:Rare uncom.gif
70	Metang		File:Rare rare.gif
71	Metagross ex		File:Rare rare.gifex
72	Registeel ex		File:Rare rare.gifex
73	Life Herb	T	File:Rare uncom.gif
74	Steven's Advice	T	File:Rare uncom.gif
75	Ancient TM [Ice]	T	File:Rare uncom.gif
76	Ancient TM [Rock]	T	File:Rare uncom.gif
77	Ancient TM [Steel]	T	File:Rare uncom.gif
78	Island Cave	T	File:Rare uncom.gif
79	Ancient Tomb	T	File:Rare uncom.gif
80	Desert Ruins	T	File:Rare uncom.gif
81	High Pressure System	T	File:Rare uncom.gif
82	Low Pressure System	T	File:Rare uncom.gif
83	Magnetic Storm	T	File:Rare uncom.gif

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