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.

Cocoon of Ultra Evolution · Legendary Duelists: Ancient Millennium 77840540/53

Cocoon of Ultra Evolution (Legendary Duelists: Ancient Millennium 77840540/53), Ultra Rare. Market price $1.73, unchanged this week. Prices are estimates from TCGPlayer and Cardmarket, not guaranteed values.

Tribute 1 Insect monster from either field equipped with an Equip Card, and if you do, Special Summon 1 Insect monster from your Deck, ignoring its Summoning conditions. During your Main Phase: You can banish this card from your GY, then target 1 Insect monster in your GY; shuffle it into the Deck, then draw 1 card. You can only use this effect of "Cocoon of Ultra Evolution" once per turn.

Weekly price history

Week	Market price
2026-W31	$1.60
2026-W32	$1.63
2026-W33	$1.67
2026-W34	$1.67
2026-W35	$1.67
2026-W36	$1.72
2026-W37	$1.73
2026-W38	$1.73
2026-W39	$1.73

Questions

How much is Cocoon of Ultra Evolution 77840540/53 worth?

Cocoon of Ultra Evolution from Legendary Duelists: Ancient Millennium (77840540/53) has a market estimate of $1.73, unchanged this week. Prices are estimates from TCGPlayer and Cardmarket.

Is Cocoon of Ultra Evolution 77840540/53 rare?

It is an Ultra Rare from Legendary Duelists: Ancient Millennium, a 53-card set.

Browse more Yu-Gi-Oh cards · All Legendary Duelists: Ancient Millennium cards · Build a deck · Track your collection