Can I build a deck together with friends on TCGSwap?

Yes. Every deck on TCGSwap has a Collaboration Space. You can invite up to 5 friends; they can suggest card changes, discuss ideas, and playtest proposals. You review and apply suggestions before anything changes in your deck.

How does deck collaboration work?

It works like a pull request for your deck. Collaborators open the deck editor, make their proposed changes, and submit a suggestion with a note. You get notified, open the comparison view to see exactly what they changed, and choose to apply all, cherry-pick individual cards, or decline. Nothing changes in your deck until you approve it.

Can collaborators chat and discuss the deck?

Yes. The Collaboration Space has a shared group discussion thread for the whole deck, plus a per-suggestion Q&A thread for each proposal. You can @mention teammates and link specific cards inline.

Is collaborative deck building free?

Yes, collaboration is free for all TCGSwap users during beta. You can invite up to 5 collaborators per deck.

Does TCGSwap work for MTG, Pokémon, Yu-Gi-Oh and One Piece collaboration?

Yes. The Collaboration Space supports all four games — Magic: The Gathering, Pokémon TCG, Yu-Gi-Oh and One Piece. Format validation and card prices are included for each game.

Gastrodon East Sea · Secret Wonders 8/132

Gastrodon East Sea (Secret Wonders 8/132), Rare Holo, Stage1, 100 HP. Market price €2.48, down 4.6% this week. Illustrated by Kazuyuki Kano. Prices are estimates from TCGPlayer and Cardmarket, not guaranteed values.

It has a pliable body without any bones. If any part of its body is torn off, it grows right back.

Card text

Poke-POWER: Osmosis — Once during your turn (before your attack), if you have Gastrodon West Sea in play, you may move up to 3 damage counters from Gastrodon East Sea to 1 of your Gastrodon West Sea.
Dwindling Wave 80- — Does 80 damage minus 10 damage for each damage counter on Gastrodon East Sea.

Weekly price history

Week	Market price
2026-W31	€2.59
2026-W32	€2.71
2026-W33	€2.71
2026-W34	€2.63
2026-W35	€2.63
2026-W36	€2.45
2026-W37	€2.57
2026-W38	€2.60
2026-W39	€2.48

Printings & variants

Holo — $14.91
Reverse Holo — $16.98

Questions

How much is Gastrodon East Sea 8/132 worth?

Gastrodon East Sea from Secret Wonders (8/132) has a market estimate of €2.48, down 4.6% this week. Prices are estimates from TCGPlayer and Cardmarket.

Is Gastrodon East Sea 8/132 rare?

It is a Rare Holo from Secret Wonders, a 132-card set.

Is Gastrodon East Sea 8/132 tournament legal?

Gastrodon East Sea 8/132 has rotated out of the current formats.

Browse more Pokémon cards · All Secret Wonders cards · Build a deck · Track your collection