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.

Grumpig · XY 50/146

Grumpig (XY 50/146), Rare, Stage1, 100 HP. Market price €0.67, down 2.9% this week. Illustrated by sui. Prices are estimates from TCGPlayer and Cardmarket, not guaranteed values.

It uses black pearls to amplify its psychic power. It does a strange dance to control foes' minds.

Card text

Tricky Steps 30 — You may move an Energy attached to your opponent's Active Pokémon to 1 of your opponent's Benched Pokémon.
Psybeam 60 — Your opponent's Active Pokémon is now Confused.

Weekly price history

Week	Market price
2026-W31	€0.65
2026-W32	€0.67
2026-W33	€0.67
2026-W34	€0.67
2026-W35	€0.67
2026-W36	€0.68
2026-W37	€0.68
2026-W38	€0.69
2026-W39	€0.67

Printings & variants

Normal — $0.44

Questions

How much is Grumpig 50/146 worth?

Grumpig from XY (50/146) has a market estimate of €0.67, down 2.9% this week. Prices are estimates from TCGPlayer and Cardmarket.

Is Grumpig 50/146 rare?

It is a Rare from XY, a 146-card set.

Is Grumpig 50/146 tournament legal?

Grumpig 50/146 is legal in Expanded.

Browse more Pokémon cards · All XY cards · Build a deck · Track your collection