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.

Decidueye GX · Sun & Moon 12/149

Decidueye GX (Sun & Moon 12/149), Ultra Rare, 240 HP. Market price €2.90, up 4.3% this week. Illustrated by 5ban Graphics. Prices are estimates from TCGPlayer and Cardmarket, not guaranteed values.

Card text

Ability: Feather Arrow — Once during your turn (before your attack), you may put 2 damage counters on 1 of your opponent’s Pokémon.
Razor Leaf 90
Hollow Hunt GX — Put 3 cards from your discard pile into your hand. (You can’t use more than 1 GX attack in a game.)

Weekly price history

Week	Market price
2026-W31	€2.84
2026-W32	€2.68
2026-W33	€2.68
2026-W34	€2.59
2026-W35	€2.59
2026-W36	€2.63
2026-W37	€2.77
2026-W38	€2.78
2026-W39	€2.90

Questions

How much is Decidueye GX 12/149 worth?

Decidueye GX from Sun & Moon (12/149) has a market estimate of €2.90, up 4.3% this week. Prices are estimates from TCGPlayer and Cardmarket.

Is Decidueye GX 12/149 rare?

It is an Ultra Rare from Sun & Moon, a 149-card set.

Is Decidueye GX 12/149 tournament legal?

Decidueye GX 12/149 is legal in Expanded.

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