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.

Great Mammoth of the Netherworld · Maze of Muertos 80461466/127

Great Mammoth of the Netherworld (Maze of Muertos 80461466/127), Rare. Market price $0.22, up 15.8% this week. Prices are estimates from TCGPlayer and Cardmarket, not guaranteed values.

If this card is Special Summoned and you control "Call of the Haunted" or a Zombie monster, except "Great Mammoth of the Netherworld": You can target 1 card on the field; destroy it. You can only use this effect of "Great Mammoth of the Netherworld" once per turn. A Zombie Xyz Monster that has this card as material gains this effect. ● Gains 1000 ATK.

Weekly price history

Week	Market price
2026-W31	$0.19
2026-W32	$0.21
2026-W33	$0.22
2026-W34	$0.20
2026-W35	$0.20
2026-W36	$0.19
2026-W37	$0.22

Questions

How much is Great Mammoth of the Netherworld 80461466/127 worth?

Great Mammoth of the Netherworld from Maze of Muertos (80461466/127) has a market estimate of $0.22, up 15.8% this week. Prices are estimates from TCGPlayer and Cardmarket.

Is Great Mammoth of the Netherworld 80461466/127 rare?

It is a Rare from Maze of Muertos, a 127-card set.

Browse more Yu-Gi-Oh cards · All Maze of Muertos cards · Build a deck · Track your collection