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.

Crowley, the Gifted Magistus · Battles of Legend: Monster Mayhem 875572/177

Crowley, the Gifted Magistus (Battles of Legend: Monster Mayhem 875572/177), Secret Rare. Market price $0.78, down 94.4% this week. Prices are estimates from TCGPlayer and Cardmarket, not guaranteed values.

If this face-up card is used as Fusion Material, its name can be treated as "Aleister the Invoker". You can only use each of the following effects of "Crowley, the Gifted Magistus" once per turn. If this card is added to your hand, except by drawing it: You can Special Summon it. If this card is Normal or Special Summoned (except during the Damage Step): You can Fusion Summon 1 "Magistus" or "Invoked" Fusion Monster from your Extra Deck, using monsters from your hand or field.

Weekly price history

Week	Market price
2026-W31	$23.62
2026-W32	$24.33
2026-W33	$24.53
2026-W34	$23.62
2026-W35	$23.62
2026-W36	$13.98
2026-W37	$0.78

Questions

How much is Crowley, the Gifted Magistus 875572/177 worth?

Crowley, the Gifted Magistus from Battles of Legend: Monster Mayhem (875572/177) has a market estimate of $0.78, down 94.4% this week. Prices are estimates from TCGPlayer and Cardmarket.

Is Crowley, the Gifted Magistus 875572/177 rare?

It is a Secret Rare from Battles of Legend: Monster Mayhem, a 177-card set.

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