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.

Unown · Undaunted 40/90

Unown (Undaunted 40/90), Uncommon, Basic, 50 HP. Market price €0.78, unchanged this week. Illustrated by Hideaki Hakozaki. Prices are estimates from TCGPlayer and Cardmarket, not guaranteed values.

Their shapes look like hieroglyphs on ancient tablets. It is said that the two are somehow related.

Card text

Poke-POWER: DARK — Once during your turn, when you put Unown from your hand onto your Bench, you may search your deck for a Darkness Energy card, show it to your opponent, and put it into your hand. Shuffle your deck afterward.
Hidden Power 10

Weekly price history

Week	Market price
2026-W31	€0.72
2026-W32	€0.73
2026-W33	€0.73
2026-W34	€0.84
2026-W35	€0.84
2026-W36	€0.83
2026-W37	€0.84
2026-W38	€0.78
2026-W39	€0.78

Printings & variants

Normal — $1.30
Reverse Holo — $5.09

Questions

How much is Unown 40/90 worth?

Unown from Undaunted (40/90) has a market estimate of €0.78, unchanged this week. Prices are estimates from TCGPlayer and Cardmarket.

Is Unown 40/90 rare?

It is an Uncommon from Undaunted, a 90-card set.

Is Unown 40/90 tournament legal?

Unown 40/90 has rotated out of the current formats.

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