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.

Gloom · Expedition Base Set 78/165

Gloom (Expedition Base Set 78/165), Uncommon, Stage1, 70 HP. Market price €3.00, up 2.0% this week. Illustrated by Yuichi Sawayama. Prices are estimates from TCGPlayer and Cardmarket, not guaranteed values.

Card text

Razor Leaf 20
Foul Odor 30 — Both the Defending Pokémon and Gloom are now Confused (after doing damage).

Weekly price history

Week	Market price
2026-W31	€2.09
2026-W32	€2.06
2026-W33	€2.06
2026-W34	€2.46
2026-W35	€2.46
2026-W36	€2.65
2026-W37	€2.96
2026-W38	€2.94
2026-W39	€3.00

Printings & variants

Normal — $8.01
Reverse Holo — $35.50

Questions

How much is Gloom 78/165 worth?

Gloom from Expedition Base Set (78/165) has a market estimate of €3.00, up 2.0% this week. Prices are estimates from TCGPlayer and Cardmarket.

Is Gloom 78/165 rare?

It is an Uncommon from Expedition Base Set, a 165-card set.

Is Gloom 78/165 tournament legal?

Gloom 78/165 has rotated out of the current formats.

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