
Undersea Ruins
$6.71
Estimated value
Market prices
- TCGplayer · Normal
- $6.71
- TCGplayer · Reverse Holofoil
- $14.99
- Cardmarket · Trend
- €2.80
Estimates for ungraded cards. Prices don't always distinguish printings, such as 1st Edition. Updated November 4, 2026.
Card details
- Rarity
- Uncommon
- Illustrator
- Midori Harada
- Category
- Trainer
- Trainer type
- Stadium
Effect
This card stays in play when you play it. Discard this card if another Stadium card comes into play. Once during each player's turn (before attacking), that player may flip a coin. If heads, that player chooses 1 of his or her Evolved Pokémon in play and discards the top Evolution card from that Pokémon, devolving it.