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.

Mitsurugi Mirror · Alliance Insight 49721684/100

Mitsurugi Mirror (Alliance Insight 49721684/100), Common. Market price $0.09, down 10.0% this week. Prices are estimates from TCGPlayer and Cardmarket, not guaranteed values.

This card can be used to Ritual Summon any Reptile Ritual Monster from your hand or GY. You must also Tribute Reptile monsters from your hand or field whose total Levels equal or exceed the Level of the Ritual Monster. If "Ame no Murakumo no Mitsurugi", "Futsu no Mitama no Mitsurugi", or "Ame no Habakiri no Mitsurugi" you control is Tributed, while this card is in your GY: You can shuffle this card into the Deck. You can only use each effect of "Mitsurugi Mirror" once per turn.

Weekly price history

Week	Market price
2026-W31	$0.18
2026-W32	$0.13
2026-W33	$0.10
2026-W34	$0.13
2026-W35	$0.13
2026-W36	$0.10
2026-W37	$0.09

Questions

How much is Mitsurugi Mirror 49721684/100 worth?

Mitsurugi Mirror from Alliance Insight (49721684/100) has a market estimate of $0.09, down 10.0% this week. Prices are estimates from TCGPlayer and Cardmarket.

Is Mitsurugi Mirror 49721684/100 rare?

It is a Common from Alliance Insight, a 100-card set.

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