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.

Muk · Aquapolis H17/147

Muk (Aquapolis H17/147), Holo Rare, Stage1, 70 HP. Market price €8.04, up 8.1% this week. Illustrated by Hajime Kusajima. Prices are estimates from TCGPlayer and Cardmarket, not guaranteed values.

Muk (National Pokédex #89) first appeared in Pokémon Red and Green (1996). Its earliest English cards in our catalogue are from 1999: Fossil.

More Muk printings

Card text

Poke-BODY: Heavyweight — As long as there is a Grass Energy attached to Muk, you must pay an additional ColorlessColorless to retreat it.
Burning Sludge 10 — Flip a number of coins equal to the amount of Grass Energy attached to Muk. If any of them are heads, the Defending Pokémon is now Poisoned and Burned.

Weekly price history

Over the last 11 weeks it has sold for between €5.00 and €8.04. That is up 51.1% from €5.32 10 weeks ago. Right now it is at its highest tracked price.

Week	Market price
2026-W31	€5.32
2026-W32	€5.15
2026-W33	€5.15
2026-W34	€5.02
2026-W35	€5.02
2026-W36	€5.00
2026-W37	€5.48
2026-W38	€5.48
2026-W39	€5.48
2026-W40	€7.44
2026-W41	€8.04

Printings & variants

Holo — $256.33

Price by market

Across 2 markets it lists from €6.18 to €18.12. Cardmarket is the cheapest market we track at €6.18, 23% under the market price.

Cardmarket — €6.18
CardTrader — €18.12

Price in context

Muk ranks #70 of the 186 priced cards in Aquapolis. The median Holo Rare in the set is €9.04. The 186 priced cards in Aquapolis are worth €12181.23 together; this card is less than 0.1% of that. The set’s value is down 1.1% this week. Over the last 11 weeks the set’s value went from €7320.69 to €12179.71 (+66.4%).

Top chases in Aquapolis

Lugia 149 — €3443.74
Umbreon 41 — €1114.54
Steelix 35 — €910.45
Arcanine 2 — €556.64
Tyranitar 40 — €496.11

Set value over 11 weeks · same 185 cards each week
Week	Set value
2026-W31	€7320.69
2026-W32	€7420.35
2026-W33	€7938.98
2026-W34	€8029.30
2026-W35	€8046.36
2026-W36	€8082.93
2026-W37	€8212.14
2026-W38	€8316.16
2026-W39	€8676.04
2026-W40	€12312.26
2026-W41	€12179.71