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.

Mawile · Crystal Guardians 9/100

Mawile (Crystal Guardians 9/100), Rare, Basic, 60 HP. Market price €9.03, down 0.2% this week. Illustrated by Kagemaru Himeno. Prices are estimates from TCGPlayer and Cardmarket, not guaranteed values.

Card text

Mining — Search your deck for a Trainer card, show it to your opponent, and put it into your hand. If that card is a Pokémon Tool card, you may attach it to 1 of your Pokémon instead. Shuffle your deck afterward.
Bite Off 20+ — If the Defending Pokémon is Pokémon-ex, this attack does 20 damage plus 30 more damage.

Weekly price history

Week	Market price
2026-W31	€8.92
2026-W32	€8.90
2026-W33	€8.90
2026-W34	€8.76
2026-W35	€8.75
2026-W36	€8.97
2026-W37	€8.81
2026-W38	€9.05
2026-W39	€9.03

Printings & variants

Holo — $28.75

Questions

How much is Mawile 9/100 worth?

Mawile from Crystal Guardians (9/100) has a market estimate of €9.03, down 0.2% this week. Prices are estimates from TCGPlayer and Cardmarket.

Is Mawile 9/100 rare?

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

Is Mawile 9/100 tournament legal?

Mawile 9/100 has rotated out of the current formats.

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