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.

Earthbound Servant Geo Gremlin · Maze of Millennia 8690387/85

Earthbound Servant Geo Gremlin (Maze of Millennia 8690387/85), Rare. Market price $0.31, up 3.3% this week. Prices are estimates from TCGPlayer and Cardmarket, not guaranteed values.

1 DARK Tuner + 1+ non-Tuner monsters During the Main Phase (Quick Effect): You can target 1 face-up monster your opponent controls; your opponent chooses 1 of these effects for you to apply. ● Destroy that monster. ● Gain LP equal to that monster's ATK. During the Battle Phase (Quick Effect): You can Fusion Summon 1 "Earthbound" Fusion Monster from your Extra Deck, by banishing its materials from your hand, field, and/or GY. You can only use each effect of "Earthbound Servant Geo Gremlin" once per turn.

Weekly price history

Week	Market price
2026-W31	$0.28
2026-W32	$0.30
2026-W33	$0.31
2026-W34	$0.30
2026-W35	$0.30
2026-W36	$0.30
2026-W37	$0.31

Questions

How much is Earthbound Servant Geo Gremlin 8690387/85 worth?

Earthbound Servant Geo Gremlin from Maze of Millennia (8690387/85) has a market estimate of $0.31, up 3.3% this week. Prices are estimates from TCGPlayer and Cardmarket.

Is Earthbound Servant Geo Gremlin 8690387/85 rare?

It is a Rare from Maze of Millennia, a 85-card set.

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