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.

Muscle Band · XY 121/146

Muscle Band (XY 121/146), Uncommon. Market price €3.02, down 9.6% this week. Illustrated by 5ban Graphics. Prices are estimates from TCGPlayer and Cardmarket, not guaranteed values.

Card text

The attacks of the Pokémon this card is attached to do 20 more damage to your opponent's Active Pokémon (before applying Weakness and Resistance).

Weekly price history

Week	Market price
2026-W31	€3.44
2026-W32	€3.46
2026-W33	€3.31
2026-W34	€3.44
2026-W35	€3.44
2026-W36	€3.50
2026-W37	€3.24
2026-W38	€3.34
2026-W39	€3.02

Printings & variants

Normal — $4.67

Questions

How much is Muscle Band 121/146 worth?

Muscle Band from XY (121/146) has a market estimate of €3.02, down 9.6% this week. Prices are estimates from TCGPlayer and Cardmarket.

Is Muscle Band 121/146 rare?

It is an Uncommon from XY, a 146-card set.

Is Muscle Band 121/146 tournament legal?

Muscle Band 121/146 is legal in Expanded.

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