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.

Omastar · Power Keepers 20/108

Omastar (Power Keepers 20/108), Rare, Stage2, 110 HP. Market price €1.22, up 0.8% this week. Illustrated by Ken Sugimori. Prices are estimates from TCGPlayer and Cardmarket, not guaranteed values.

Card text

Pull Down — If your opponent has any Evolved Pokémon in play, remove the highest Stage Evolution card from each of them and put those cards back into his or her hand.
Hydrocannon 30+ — Does 30 damage plus 20 more damage for each Water Energy attached to Omastar but not used to pay for this attack's Energy cost. You can't add more than 40 damage in this way.

Weekly price history

Week	Market price
2026-W31	€1.24
2026-W32	€1.28
2026-W33	€1.28
2026-W34	€1.29
2026-W35	€1.29
2026-W36	€1.24
2026-W37	€1.12
2026-W38	€1.21
2026-W39	€1.22

Printings & variants

Normal — $1.70

Questions

How much is Omastar 20/108 worth?

Omastar from Power Keepers (20/108) has a market estimate of €1.22, up 0.8% this week. Prices are estimates from TCGPlayer and Cardmarket.

Is Omastar 20/108 rare?

It is a Rare from Power Keepers, a 108-card set.

Is Omastar 20/108 tournament legal?

Omastar 20/108 has rotated out of the current formats.

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