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.

Tentacool · Fossil 56/62

Tentacool (Fossil 56/62), Common, Basic, 30 HP. Market price €0.70, down 6.7% this week. Illustrated by Kagemaru Himeno. Prices are estimates from TCGPlayer and Cardmarket, not guaranteed values.

Drifts in shallow seas. Anglers who hook them by accident are often punished by its stinging acid.

Card text

Pokemon Power: Cowardice — At any time during your turn (before your attack), you may return Tentacool to your hand. (Discard all cards attached to Tentacool.) This power can't be used the turn you put Tentacool into play or if Tentacool is Asleep, Confused, or Paralyzed.
Acid 10

Weekly price history

Week	Market price
2026-W31	€1.04
2026-W32	€1.06
2026-W33	€1.06
2026-W34	€0.66
2026-W35	€0.67
2026-W36	€0.79
2026-W37	€0.79
2026-W38	€0.75
2026-W39	€0.70

Questions

How much is Tentacool 56/62 worth?

Tentacool from Fossil (56/62) has a market estimate of €0.70, down 6.7% this week. Prices are estimates from TCGPlayer and Cardmarket.

Is Tentacool 56/62 rare?

It is a Common from Fossil, a 62-card set.

Is Tentacool 56/62 tournament legal?

Tentacool 56/62 has rotated out of the current formats.

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