Undone Seal
#56 · 2004 · 83 cards
Market Price · Near Mint · Updated August 10, 2026
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Prices updated Aug 10, 2026
Recent market data · NM
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Live listings · Sorted by price
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HP
100
Type
Pokémon
Stage
Basic, ex
Evolves from
[]
Ability
Mark of Antiquity
As long as Groudon ex is your Active Pokémon, each player's Kyogre ex and Rayquaza ex can't attack.
Attacks
Rock Tumble
30
This attack's damage is not affected by Resistance.
Crushing Mantle
50+
You may discard from your hand as many Energy cards as you like. If you do, this attack does 50 damage plus 10 more damage for each Energy card you discarded.
Weakness
Retreat Cost
Illustrated by
Hikaru Koike
Pokédex
#383
A PSA 10 (Gem Mint) copy of Groudon ex #56 sells for $859.95.
Groudon
25th Anniversary Collection
0.0%14d
Groudon EX
ADV Promos
Groudon
ADV Promos
Groudon EX
ADV Promos
Groudon
ADV Promos
Groudon
Ascended Heroes
0.0%14d
Groudon
Call of Legends
0.0%14d
Groudon
Call of Legends
0.0%14d
Groudon
Celebrations
-3.0%14d
Groudon
Celestial Storm
+5.3%14d
Tap a grade to see its price history
| Condition | Market | eBay Sold |
|---|---|---|
Near Mint | — | $25.00 |
Lightly Played | — | — |
Moderately Played | — | — |
Heavily Played | — | — |
Damaged | — | — |
~ estimated from NM using standard condition discounts · updated when marketplace data is available
Ungraded + PSA / CGC / BGS grades
| Condition | Market | eBay |
|---|---|---|
| Near MintMost common | — | $25.00 |
| Lightly Played | — | — |
| Moderately Played | — | — |
| Heavily Played | — | — |
| Damaged | — | — |
Graded Prices
| Grade | PSA | CGC | BGS |
|---|---|---|---|
| ★ 10 | $859.95 | $404.06 | — |
| 9 | $381.94 | $61.00 | — |
| 8 | $201.28 | — | — |
| 7 | $68.08 | — | — |
Live market prices · ~ estimated using standard condition discounts
