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.

Flash of Heraldry · Alliance Insight 31809476/100

Flash of Heraldry (Alliance Insight 31809476/100), Super Rare. Market price $0.17, unchanged this week. Prices are estimates from TCGPlayer and Cardmarket, not guaranteed values.

Target any number of face-up monsters your opponent controls; those monsters' names become "Unknown". During your End Phase, if you control a Psychic Xyz Monster and this card is in your GY: You can Set this card, but banish it when it leaves the field. You can only use this effect of "Flash of Heraldry" once per turn.

Weekly price history

Week	Market price
2026-W31	$0.15
2026-W32	$0.15
2026-W33	$0.19
2026-W34	$0.18
2026-W35	$0.18
2026-W36	$0.17
2026-W37	$0.17

Questions

How much is Flash of Heraldry 31809476/100 worth?

Flash of Heraldry from Alliance Insight (31809476/100) has a market estimate of $0.17, unchanged this week. Prices are estimates from TCGPlayer and Cardmarket.

Is Flash of Heraldry 31809476/100 rare?

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

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