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.

Sidney · Fusion Strike 264/264

Sidney (Fusion Strike 264/264), Ultra Rare. Market price €1.71, down 3.9% this week. Illustrated by Hideki Ishikawa. Prices are estimates from TCGPlayer and Cardmarket, not guaranteed values.

Card text

Your opponent reveals their hand. Discard up to 2 in any combination of Pokémon Tool cards, Special Energy cards, and Stadium cards from it.

Weekly price history

Week	Market price
2026-W31	€1.75
2026-W32	€1.75
2026-W33	€1.77
2026-W34	€1.84
2026-W35	€1.85
2026-W36	€1.74
2026-W37	€1.79
2026-W38	€1.78
2026-W39	€1.71

Printings & variants

Holo — $1.16

Questions

How much is Sidney 264/264 worth?

Sidney from Fusion Strike (264/264) has a market estimate of €1.71, down 3.9% this week. Prices are estimates from TCGPlayer and Cardmarket.

Is Sidney 264/264 rare?

It is an Ultra Rare from Fusion Strike, a 264-card set.

Is Sidney 264/264 tournament legal?

Sidney 264/264 is legal in Expanded.

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