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 · Crystal Guardians 24/100

Marshtomp (Crystal Guardians 24/100), Rare, Stage1, 70 HP. Market price €1.87, down 7.0% this week. Illustrated by Kagemaru Himeno. Prices are estimates from TCGPlayer and Cardmarket, not guaranteed values.

Card text

Rain Splash 20
Mud Splash 30 — Does 30 damage to 1 of your opponent's Benched Pokémon. (Don't apply Weakness and Resistance for Benched Pokémon.)

Weekly price history

Week	Market price
2026-W31	€2.44
2026-W32	€2.40
2026-W33	€2.40
2026-W34	€2.44
2026-W35	€2.44
2026-W36	€2.29
2026-W37	€2.16
2026-W38	€2.01
2026-W39	€1.87

Printings & variants

Normal — $3.32

Questions

How much is Marshtomp 24/100 worth?

Marshtomp from Crystal Guardians (24/100) has a market estimate of €1.87, down 7.0% this week. Prices are estimates from TCGPlayer and Cardmarket.

Is Marshtomp 24/100 rare?

It is a Rare from Crystal Guardians, a 100-card set.

Is Marshtomp 24/100 tournament legal?

Marshtomp 24/100 has rotated out of the current formats.

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