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.

Blastoise EX · Evolutions 21/108

Blastoise EX (Evolutions 21/108), Ultra Rare, Basic, 180 HP. Market price €7.56, down 2.3% this week. Illustrated by Eske Yoshinob. Prices are estimates from TCGPlayer and Cardmarket, not guaranteed values.

Card text

Rapid Spin 30 — Switch this Pokémon with 1 of your Benched Pokémon. Then, your opponent switches his or her Active Pokémon with 1 of his or her Benched Pokémon.
Splash Bomb 120 — Flip a coin. If tails, this Pokémon does 30 damage to itself.

Weekly price history

Week	Market price
2026-W31	€8.31
2026-W32	€8.09
2026-W33	€8.11
2026-W34	€8.31
2026-W35	€8.18
2026-W36	€7.86
2026-W37	€7.73
2026-W38	€7.74
2026-W39	€7.56

Questions

How much is Blastoise EX 21/108 worth?

Blastoise EX from Evolutions (21/108) has a market estimate of €7.56, down 2.3% this week. Prices are estimates from TCGPlayer and Cardmarket.

Is Blastoise EX 21/108 rare?

It is an Ultra Rare from Evolutions, a 108-card set.

Is Blastoise EX 21/108 tournament legal?

Blastoise EX 21/108 is legal in Expanded.

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