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 West Sea · Secret Wonders 9/132

Gastrodon West Sea (Secret Wonders 9/132), Rare Holo, Stage1, 100 HP. Market price €4.67, up 39.8% 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

Raging Flood 20+ — Does 20 damage plus 10 more damage for each damage counter on Gastrodon West Sea. Then, remove 2 damage counters from Gastrodon West Sea.
Wild Waves 80 — Put 1 damage counter on each Benched Pokémon (both yours and your opponent's).

Weekly price history

Week	Market price
2026-W31	€2.85
2026-W32	€3.22
2026-W33	€3.22
2026-W34	€3.11
2026-W35	€3.11
2026-W36	€3.10
2026-W37	€3.34
2026-W38	€3.34
2026-W39	€4.67

Printings & variants

Holo — $11.79
Reverse Holo — $11.46

Questions

How much is Gastrodon West Sea 9/132 worth?

Gastrodon West Sea from Secret Wonders (9/132) has a market estimate of €4.67, up 39.8% this week. Prices are estimates from TCGPlayer and Cardmarket.

Is Gastrodon West Sea 9/132 rare?

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

Is Gastrodon West Sea 9/132 tournament legal?

Gastrodon West Sea 9/132 has rotated out of the current formats.

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