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 Prisoner Ground Keeper · Maze of Millennia 46939151/85

Earthbound Prisoner Ground Keeper (Maze of Millennia 46939151/85), Rare. Market price $0.19, up 5.6% this week. Prices are estimates from TCGPlayer and Cardmarket, not guaranteed values.

If this card is Normal or Special Summoned: You can Special Summon 1 Level 5 or lower "Earthbound" monster from your Deck or GY, except "Earthbound Prisoner Ground Keeper", also you cannot Special Summon from the Extra Deck for the rest of this turn, except Fusion or Synchro Monsters. You can only use this effect of "Earthbound Prisoner Ground Keeper" once per turn. "Earthbound" monsters you control cannot be destroyed by battle or card effects while there is a card in a Field Zone.

Weekly price history

Week	Market price
2026-W31	$0.20
2026-W32	$0.19
2026-W33	$0.18
2026-W34	$0.18
2026-W35	$0.18
2026-W36	$0.18
2026-W37	$0.19

Questions

How much is Earthbound Prisoner Ground Keeper 46939151/85 worth?

Earthbound Prisoner Ground Keeper from Maze of Millennia (46939151/85) has a market estimate of $0.19, up 5.6% this week. Prices are estimates from TCGPlayer and Cardmarket.

Is Earthbound Prisoner Ground Keeper 46939151/85 rare?

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

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