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.

Mamoswine · Triumphant 5/102

Mamoswine (Triumphant 5/102), Holo Rare, Stage2, 140 HP. Market price €2.21, up 3.8% this week. Illustrated by Kagemaru Himeno. Prices are estimates from TCGPlayer and Cardmarket, not guaranteed values.

A frozen Mamoswine was dug from ice dating back 10,000 years. This Pokémon has been around a long, long, long time.

Card text

Icy Wind 40 — The Defending Pokémon is now Asleep.
Snowstorm 70 — Does 20 damage to each of your opponent's Benched Pokémon that has any damage counters on it. (Don't apply Weakness and Resistance for Benched Pokémon.)

Weekly price history

Week	Market price
2026-W31	€2.53
2026-W32	€2.63
2026-W33	€2.63
2026-W34	€2.66
2026-W35	€2.66
2026-W36	€2.53
2026-W37	€2.08
2026-W38	€2.13
2026-W39	€2.21

Printings & variants

Holo — $3.68
Reverse Holo — $3.73

Questions

How much is Mamoswine 5/102 worth?

Mamoswine from Triumphant (5/102) has a market estimate of €2.21, up 3.8% this week. Prices are estimates from TCGPlayer and Cardmarket.

Is Mamoswine 5/102 rare?

It is a Holo Rare from Triumphant, a 102-card set.

Is Mamoswine 5/102 tournament legal?

Mamoswine 5/102 has rotated out of the current formats.

Browse more Pokémon cards · All Triumphant cards · Build a deck · Track your collection