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?

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Is collaborative deck building free?

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Does TCGSwap work for MTG, Pokémon, Yu-Gi-Oh and One Piece collaboration?

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Tandemaus · Scarlet & Violet 159/198

Tandemaus (Scarlet & Violet 159/198), Common, Basic, 30 HP. Market price €0.05, down 16.7% this week. Illustrated by Pani Kobayashi. Prices are estimates from TCGPlayer and Cardmarket, not guaranteed values.

The pair sticks together no matter what. They split any food they find exactly in half and then eat it together.

Card text

Gnaw 20

Weekly price history

Week	Market price
2026-W31	€0.07
2026-W32	€0.08
2026-W33	€0.08
2026-W34	€0.07
2026-W35	€0.07
2026-W36	€0.07
2026-W37	€0.06
2026-W38	€0.06
2026-W39	€0.05

Printings & variants

Normal — $0.21
Reverse Holo — $0.51

Questions

How much is Tandemaus 159/198 worth?

Tandemaus from Scarlet & Violet (159/198) has a market estimate of €0.05, down 16.7% this week. Prices are estimates from TCGPlayer and Cardmarket.

Is Tandemaus 159/198 rare?

It is a Common from Scarlet & Violet, a 198-card set.

Is Tandemaus 159/198 tournament legal?

Tandemaus 159/198 is legal in Expanded.

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