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.

Rocky Helmet · Boundaries Crossed 153/149

Rocky Helmet (Boundaries Crossed 153/149), Secret Rare. Market price €16.75, up 0.4% this week. Illustrated by Ryo Ueda. Prices are estimates from TCGPlayer and Cardmarket, not guaranteed values.

Card text

If the Pokémon this card is attached to is your Active Pokémon and is damaged by an opponent’s attack (even if that Pokémon is Knocked Out), put 2 damage counters on the Attacking Pokémon.

Weekly price history

Week	Market price
2026-W31	€16.92
2026-W32	€16.69
2026-W33	€16.69
2026-W34	€16.69
2026-W35	€16.69
2026-W36	€16.69
2026-W37	€16.69
2026-W38	€16.69
2026-W39	€16.75

Questions

How much is Rocky Helmet 153/149 worth?

Rocky Helmet from Boundaries Crossed (153/149) has a market estimate of €16.75, up 0.4% this week. Prices are estimates from TCGPlayer and Cardmarket.

Is Rocky Helmet 153/149 rare?

It is a Secret Rare from Boundaries Crossed, a 149-card set.

Is Rocky Helmet 153/149 tournament legal?

Rocky Helmet 153/149 is legal in Expanded.

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