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 GX · Guardians Rising 139/145

Metagross GX (Guardians Rising 139/145), Ultra Rare, 250 HP. Market price €20.50, up 40.1% this week. Illustrated by 5ban Graphics. Prices are estimates from TCGPlayer and Cardmarket, not guaranteed values.

Card text

Ability: Geotech System — Once during your turn (before your attack), you may attach a Psychic or Metal Energy card from your discard pile to your Active Pokémon.
Giga Hammer 150 — This Pokémon can’t use Giga Hammer during your next turn.
Algorithm GX — Search your deck for up to 5 cards and put them into your hand. Then, shuffle your deck. (You can’t use more than 1 GX attack in a game.)

Weekly price history

Week	Market price
2026-W31	€14.12
2026-W32	€14.32
2026-W33	€14.32
2026-W34	€14.17
2026-W35	€14.17
2026-W36	€14.07
2026-W37	€14.31
2026-W38	€14.63
2026-W39	€20.50

Questions

How much is Metagross GX 139/145 worth?

Metagross GX from Guardians Rising (139/145) has a market estimate of €20.50, up 40.1% this week. Prices are estimates from TCGPlayer and Cardmarket.

Is Metagross GX 139/145 rare?

It is an Ultra Rare from Guardians Rising, a 145-card set.

Is Metagross GX 139/145 tournament legal?

Metagross GX 139/145 is legal in Expanded.

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