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.

Marincess Crystal Heart · Chaos Impact Special Edition 67712104/4

Marincess Crystal Heart (Chaos Impact Special Edition 67712104/4), Super Rare. Market price $0.13, up 8.3% this week. Prices are estimates from TCGPlayer and Cardmarket, not guaranteed values.

2 WATER monsters Unaffected by your opponent's monster effects while this card is in the Extra Monster Zone. During the Damage Step, if this card battles an opponent's monster, that opponent's monster is unaffected by card effects, except its own. When this card, or your "Marincess" Link Monster this card points to, is targeted for an attack: You can send 1 "Marincess" monster from your hand to the GY; for that battle, your monster cannot be destroyed by battle and you take no battle damage.

Weekly price history

Week	Market price
2026-W31	$0.10
2026-W32	$0.10
2026-W33	$0.10
2026-W34	$0.10
2026-W35	$0.10
2026-W36	$0.09
2026-W37	$0.10
2026-W38	$0.12
2026-W39	$0.13

Questions

How much is Marincess Crystal Heart 67712104/4 worth?

Marincess Crystal Heart from Chaos Impact Special Edition (67712104/4) has a market estimate of $0.13, up 8.3% this week. Prices are estimates from TCGPlayer and Cardmarket.

Is Marincess Crystal Heart 67712104/4 rare?

It is a Super Rare from Chaos Impact Special Edition, a 4-card set.

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