Can I build a deck together with friends on TCGSwap?

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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?

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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's Koffing · Gym Challenge 48/132

Koga's Koffing (Gym Challenge 48/132), Uncommon, Basic, 50 HP. Market price €2.27, unchanged this week. Illustrated by Ken Sugimori. Prices are estimates from TCGPlayer and Cardmarket, not guaranteed values.

Koffing (National Pokédex #109) first appeared in Pokémon Red and Green (1996). Its earliest English cards in our catalogue are from 1999: Base Set.

More Koga's Koffing printings

Koga's Koffing · Gym Challenge — €43.04

Card text

Smokescreen 10 — If the Defending Pokémon tries to attack during your opponent's next turn, your opponent flips a coin. If tails, that attack does nothing.
Obscuring Gas 30 — Flip a coin. If heads, shuffle Koga's Koffing and all cards attached to it into your deck (after doing damage).

Weekly price history

Week	Market price
2026-W31	€2.07
2026-W32	€2.05
2026-W33	€2.05
2026-W34	€2.27
2026-W35	€2.27
2026-W36	€2.27
2026-W37	€2.27
2026-W38	€2.27
2026-W39	€2.27
2026-W40	€2.27

Price in context

Koga's Koffing ranks #93 of the 130 priced cards in Gym Challenge. The median Uncommon in the set is €4.04. The 130 priced cards in Gym Challenge are worth €3535.72 together; this card is less than 0.1% 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