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.

Alolan Muk · Cosmic Eclipse 131/236

Alolan Muk (Cosmic Eclipse 131/236), Rare, Stage1, 140 HP. Market price €0.45, up 4.7% this week. Illustrated by MAHOU. Prices are estimates from TCGPlayer and Cardmarket, not guaranteed values.

There are over a hundred kinds of poison inside its body. Chemical reactions between different poisons are the source of its vitality.

Card text

Panic Poison 20 — Your opponent’s Active Pokémon is now Burned, Confused, and Poisoned.
Sludge Bomb 110

Weekly price history

Week	Market price
2026-W31	€0.37
2026-W32	€0.37
2026-W33	€0.38
2026-W34	€0.39
2026-W35	€0.39
2026-W36	€0.43
2026-W37	€0.42
2026-W38	€0.43
2026-W39	€0.45

Printings & variants

Normal — $0.70

Questions

How much is Alolan Muk 131/236 worth?

Alolan Muk from Cosmic Eclipse (131/236) has a market estimate of €0.45, up 4.7% this week. Prices are estimates from TCGPlayer and Cardmarket.

Is Alolan Muk 131/236 rare?

It is a Rare from Cosmic Eclipse, a 236-card set.

Is Alolan Muk 131/236 tournament legal?

Alolan Muk 131/236 is legal in Expanded.

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