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.

Brain Controller · Alliance Insight 44265115/100

Brain Controller (Alliance Insight 44265115/100), Common. Market price $0.09, down 10.0% this week. Prices are estimates from TCGPlayer and Cardmarket, not guaranteed values.

If this card is Normal or Special Summoned: You can add 1 "Brain Control" from your Deck to your hand. If you pay LP (except during the Damage Step): You can target 1 face-up monster on the field and declare a Level from 1 to 8; that monster becomes that Level. If this card is sent to the GY as Synchro Material: You can Special Summon this card to your opponent's field in Defense Position, but negate its effects. You can only use each effect of "Brain Controller" once per turn.

Weekly price history

Week	Market price
2026-W31	$0.11
2026-W32	$0.09
2026-W33	$0.10
2026-W34	$0.11
2026-W35	$0.11
2026-W36	$0.10
2026-W37	$0.09

Questions

How much is Brain Controller 44265115/100 worth?

Brain Controller from Alliance Insight (44265115/100) has a market estimate of $0.09, down 10.0% this week. Prices are estimates from TCGPlayer and Cardmarket.

Is Brain Controller 44265115/100 rare?

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

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