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.

Marshtomp · Great Encounters 46/106

Marshtomp (Great Encounters 46/106), Uncommon, Stage1, 90 HP. Market price €0.53, unchanged this week. Illustrated by Sumiyoshi Kizuki. Prices are estimates from TCGPlayer and Cardmarket, not guaranteed values.

Its sturdy legs give it sure footing, even in mud. It burrows into dirt to sleep.

Marshtomp (National Pokédex #259) first appeared in Pokémon Ruby and Sapphire (2002). Its earliest English cards in our catalogue are from 2003: Dragon, Nintendo Black Star Promos, Ruby & Sapphire.

More Marshtomp printings

Marshtomp · Fantastical Parade
Marshtomp · Fusion Strike — €0.15
Marshtomp · Celestial Storm — €0.37
Marshtomp · Primal Clash — €0.34
Marshtomp · Supreme Victors — €0.76
Marshtomp · POP Series 3 — €1.17
Marshtomp · Crystal Guardians — €1.87
Marshtomp · Crystal Guardians — €0.62
Marshtomp · Emerald — €0.88
Marshtomp · Nintendo Black Star Promos — $217.94
Marshtomp · Dragon — €1.62
Marshtomp · Ruby & Sapphire — €1.21

Card text

Pound 20
Muddy Bomb — Choose 1 of your opponent's Pokémon. This attack does 30 damage to that Pokémon and 10 damage to each of your opponent's other Pokémon. (Don't apply Weakness and Resistance for Benched Pokémon.)

Weekly price history

Week	Market price
2026-W31	€0.54
2026-W32	€0.53
2026-W33	€0.57
2026-W34	€0.55
2026-W35	€0.55
2026-W36	€0.52
2026-W37	€0.52
2026-W38	€0.55
2026-W39	€0.53
2026-W40	€0.53

Printings & variants

Normal — $1.90
Reverse Holo — $12.72

Price in context

Marshtomp ranks #44 of the 102 priced cards in Great Encounters. The median Uncommon in the set is €0.29. The 102 priced cards in Great Encounters are worth €346.70 together; this card is 0.15% of that. The set’s value is unchanged this week. Over the last 10 weeks the set’s value went from €296.07 to €346.70 (+17.1%).

Top chases in Great Encounters

Palkia 106 — €84.93
Dialga 105 — €79.32
Cresselia 103 — €41.86
Darkrai 104 — €37.22
Pachirisu 5 — €6.42

Set value over 10 weeks · same 102 cards each week
Week	Set value
2026-W31	€296.07
2026-W32	€306.64
2026-W33	€307.62
2026-W34	€306.15
2026-W35	€307.25
2026-W36	€315.25
2026-W37	€314.96
2026-W38	€320.55
2026-W39	€346.70
2026-W40	€346.70