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.

Metagross · Undaunted 18/90

Metagross (Undaunted 18/90), Rare, Stage2, 130 HP. Market price €0.74, up 8.8% this week. Illustrated by TOKIYA. Prices are estimates from TCGPlayer and Cardmarket, not guaranteed values.

It folds its four legs when flying. Its four brains are said to be superior to a supercomputer.

Card text

Strength 70
Quad Smash 50× — Flip 4 coins. This attack does 50 damage times the number of heads.

Weekly price history

Week	Market price
2026-W31	€1.05
2026-W32	€1.01
2026-W33	€0.84
2026-W34	€0.70
2026-W35	€0.73
2026-W36	€0.72
2026-W37	€0.70
2026-W38	€0.68
2026-W39	€0.74

Printings & variants

Normal — $2.83
Reverse Holo — $14.60

Questions

How much is Metagross 18/90 worth?

Metagross from Undaunted (18/90) has a market estimate of €0.74, up 8.8% this week. Prices are estimates from TCGPlayer and Cardmarket.

Is Metagross 18/90 rare?

It is a Rare from Undaunted, a 90-card set.

Is Metagross 18/90 tournament legal?

Metagross 18/90 has rotated out of the current formats.

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