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.

Boost Shake · Evolving Skies 229/203

Boost Shake (Evolving Skies 229/203), Secret Rare. Market price €4.44, unchanged this week. Illustrated by sadaji. Prices are estimates from TCGPlayer and Cardmarket, not guaranteed values.

Card text

Search your deck for a card that evolves from 1 of your Pokémon and put it onto that Pokémon to evolve it. Then, shuffle your deck. You can use this card during your first turn or on a Pokémon that was put into play this turn. Your turn ends.

Weekly price history

Week	Market price
2026-W31	€4.26
2026-W32	€4.17
2026-W33	€4.17
2026-W34	€4.24
2026-W35	€4.24
2026-W36	€4.47
2026-W37	€4.47
2026-W38	€4.44
2026-W39	€4.44

Printings & variants

Holo — $2.47

Questions

How much is Boost Shake 229/203 worth?

Boost Shake from Evolving Skies (229/203) has a market estimate of €4.44, unchanged this week. Prices are estimates from TCGPlayer and Cardmarket.

Is Boost Shake 229/203 rare?

It is a Secret Rare from Evolving Skies, a 203-card set.

Is Boost Shake 229/203 tournament legal?

Boost Shake 229/203 is legal in Expanded.

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