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.

Yum☆Yum☆Yummys · Doom of Dimensions 56870908/101

Yum☆Yum☆Yummys (Doom of Dimensions 56870908/101), Super Rare. Market price $0.19, up 5.6% this week. Prices are estimates from TCGPlayer and Cardmarket, not guaranteed values.

Each time 2 or more "Yummy" monsters are Special Summoned to your field at the same time, you gain 500 LP, and if you do, your opponent loses 500 LP. You can only use each of the following effects of "Yum☆Yum☆Yummys" once per turn. You can pay 500 LP, then target 2 face-up monsters on the field including a "Yummy★Snatchy"; send both to the GY, and if you do, Special Summon 1 "Yummy" Synchro Monster from your Extra Deck (this is treated as a Synchro Summon). If your opponent activates a card or effect (except during the Damage Step): You can pay 100 LP; immediately after this effect resolves, Link Summon 1 "Yummy" Link Monster.

Weekly price history

Week	Market price
2026-W31	$0.21
2026-W32	$0.27
2026-W33	$0.26
2026-W34	$0.24
2026-W35	$0.24
2026-W36	$0.18
2026-W37	$0.19

Questions

How much is Yum☆Yum☆Yummys 56870908/101 worth?

Yum☆Yum☆Yummys from Doom of Dimensions (56870908/101) has a market estimate of $0.19, up 5.6% this week. Prices are estimates from TCGPlayer and Cardmarket.

Is Yum☆Yum☆Yummys 56870908/101 rare?

It is a Super Rare from Doom of Dimensions, a 101-card set.

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