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.

Koga · Gym Challenge 19/132

Koga (Gym Challenge 19/132), Holo Rare. Market price €43.04, unchanged this week, relatively stable over the last 10 weeks. Illustrated by Ken Sugimori. Prices are estimates from TCGPlayer and Cardmarket, not guaranteed values.

More Koga printings

Card text

If an attack from a Pokémon with Koga in its name does damage to a Defending Pokémon this turn, that Pokémon is then Poisoned.

Weekly price history

Week	Market price
2026-W31	€44.41
2026-W32	€44.93
2026-W33	€44.44
2026-W34	€43.04
2026-W35	€43.04
2026-W36	€43.04
2026-W37	€43.04
2026-W38	€43.04
2026-W39	€43.04
2026-W40	€43.04

Price in context

Koga ranks #26 of the 130 priced cards in Gym Challenge. The median Holo Rare in the set is €69.33. The 130 priced cards in Gym Challenge are worth €3535.72 together; this card is 1.22% of that. The set’s value is unchanged this week. Over the last 10 weeks the set’s value went from €3367.79 to €3535.72 (+5%).

Top chases in Gym Challenge

Blaine's Charizard 2 — €531.43
Sabrina's Gengar 29 — €317.59
Rocket's Mewtwo 14 — €221.96
Erika's Venusaur 4 — €182.86
Rocket's Zapdos 15 — €165.24

Set value over 10 weeks · same 130 cards each week
Week	Set value
2026-W31	€3367.79
2026-W32	€3350.79
2026-W33	€3337.25
2026-W34	€3535.70
2026-W35	€3535.72
2026-W36	€3535.72
2026-W37	€3535.72
2026-W38	€3535.72
2026-W39	€3535.72
2026-W40	€3535.72