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 · Sandstorm 9/100

Mawile (Sandstorm 9/100), Holo Rare, Basic, 60 HP. Market price €16.71, up 0.7% this week. Illustrated by Mitsuhiro Arita. Prices are estimates from TCGPlayer and Cardmarket, not guaranteed values.

Card text

Scam — Look at your opponent's hand. You may have your opponent shuffle a Supporter card you find there into his or her deck. If you do, your opponent draws a card.
Metal Hook 20 — Before doing damage, you may switch 1 of your opponent's Benched Pokémon with 1 of the Defending Pokémon. If you do, this attack does 20 damage to the new Defending Pokémon.

Weekly price history

Week	Market price
2026-W31	€18.95
2026-W32	€18.89
2026-W33	€18.89
2026-W34	€16.54
2026-W35	€16.54
2026-W36	€16.66
2026-W37	€16.85
2026-W38	€16.60
2026-W39	€16.71

Printings & variants

Holo — $65.00
Reverse Holo — $60.74

Questions

How much is Mawile 9/100 worth?

Mawile from Sandstorm (9/100) has a market estimate of €16.71, up 0.7% this week. Prices are estimates from TCGPlayer and Cardmarket.

Is Mawile 9/100 rare?

It is a Holo Rare from Sandstorm, a 100-card set.

Is Mawile 9/100 tournament legal?

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

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