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.

Dark Blastoise · Team Rocket 20/82

Dark Blastoise (Team Rocket 20/82), Rare, Stage2, 70 HP. Market price €174.05, up 8.9% this week. Illustrated by Mitsuhiro Arita. Prices are estimates from TCGPlayer and Cardmarket, not guaranteed values.

An aggressive Pokémon that tackles anything it sees.

Card text

Hydrocannon 30+ — Does 30 damage plus 20 more damage for each W Energy attached to Dark Blastoise but not used to pay for this attack. You can't add more than 40 damage in this way.
Rocket Tackle 40 — Dark Blastoise does 10 damage to itself. Flip a coin. If heads, prevent all damage done to Dark Blastoise during your opponent's next turn. (Any other effects of attacks still happen.)

Weekly price history

Week	Market price
2026-W31	€192.71
2026-W32	€164.92
2026-W33	€164.92
2026-W34	€185.03
2026-W35	€185.03
2026-W36	€188.52
2026-W37	€168.74
2026-W38	€159.85
2026-W39	€174.05

Questions

How much is Dark Blastoise 20/82 worth?

Dark Blastoise from Team Rocket (20/82) has a market estimate of €174.05, up 8.9% this week. Prices are estimates from TCGPlayer and Cardmarket.

Is Dark Blastoise 20/82 rare?

It is a Rare from Team Rocket, a 82-card set.

Is Dark Blastoise 20/82 tournament legal?

Dark Blastoise 20/82 has rotated out of the current formats.

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