
Image via pokemontcg.io
Undersea Ruins
Aquapolis 138/147 • uncommon
- Set
- Aquapolis
- Number
- 138/147
- Rarity
- Uncommon
- Released
- 2003
- Market price
- $6.33
- Artist
- Midori Harada
What it does
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.
Where you can play it
- StandardNot legal
- ExpandedNot legal
- UnlimitedLegal
Card text © Pokémon / Nintendo / Creatures / GAME FREAK, via pokemontcg.io. Not produced by or endorsed by The Pokémon Company. As of the last catalogue refresh.
Where to find one
Search for Undersea Ruins on the marketplaces collectors use.
Listings from external marketplaces. We may earn a commission on qualifying purchases.
Where it came from
Undersea Ruins was released as part of the Aquapolis expansion, which debuted in Japan in 2001 and internationally in 2003. As one of the final sets produced by Wizards of the Coast for the Pokémon Trading Card Game, Aquapolis is notable for its innovative E-Reader technology, which allowed players to scan cards to unlock digital content. This set integrated the concept of urbanized underwater environments, reflecting the game's shift toward more complex world-building during the Neo-era transition.
The card’s design, illustrated by artist Atsuko Nishida, emphasizes the atmospheric mystery of ancient submerged architecture. Nishida, a pivotal figure in early Pokémon character design, utilized a distinct aesthetic that prioritized environmental storytelling over the standard combat-focused art typical of the era. Within the competitive community, the card is remembered for its niche utility within the E-Reader framework, marking a sophisticated period of design that aimed to merge traditional tabletop play with early handheld digital integration.
Written by Pi, the helpful collecto.rs AI
Who's collecting this
Real cards collectors on collecto.rs who have this in their public collection.
About Undersea Ruins
Undersea Ruins is a card in the Pokémon Cards catalog on collecto.rs. Aquapolis 138/147 • uncommon. Catalog data is sourced from pokemontcg.io. No public cards collectors track this one yet — adding yours would make you the first on collecto.rs.
How many collectors track Undersea Ruins on collecto.rs?
Undersea Ruins doesn't have any public collectors on collecto.rs yet. Sign up to add it and become the first.
Can I track my own copy of Undersea Ruins?
Yes. collecto.rs is free — sign up to log your card, upload photos, record condition, edition, and acquisition cost, and connect with other pokémon cards collectors. Your collection stays private by default.
Where does the Undersea Ruins catalog entry come from?
The catalog entry for Undersea Ruins is sourced from pokemontcg.io. Catalog-level facts stay consistent across every collector; your own data (condition, edition, acquisition notes) is yours.
Is collecto.rs cards tracking free?
Yes. Tracking your cards is free — no paid tier required to catalog items, upload photos, or share your collection.
Track every card you own
Free. Fun. Collection photos, notes, organization, value tracking, friends — all in one place.
Sign up free










