Harmonized Trio // Brainstorm

Card text

{T}, Tap two untapped creatures you control: This creature becomes prepared. (While it's prepared, you may cast a copy of its spell. Doing so unprepares it.)

Market price

Latest aggregated market price for the normal finish of this printing: $0.72 (as of 2026-10-23).

The figure covers this printing only; other printings carry their own price on their own page.

Format legality

Legality of Harmonized Trio // Brainstorm by format. Formats in which it is not legal are not listed.

Other printings of Harmonized Trio // Brainstorm

Harmonized Trio // Brainstorm has been printed in 2 sets. The other printings are listed newest first, with the rarity and release year of each.

Official rulings

The 8 most recent official rulings for Harmonized Trio // Brainstorm, newest first.

• 2026-03-20 As an effect causes a creature with a prepare spell to become prepared (including effects that state that a creature "enters prepared"), that creature's controller creates a copy of that creature's prepare spell in exile. That copy remains in exile for as long as that permanent is on the battlefield and is prepared. That creature's controller may cast that copy as long as it remains in exile. As they cast it, that creature stops being prepared.
• 2026-03-20 If an effect instructs you to choose a card name, you may choose the alternative prepare spell's name. Consider only the alternative characteristics to determine whether that is an appropriate name to choose.
• 2026-03-20 If an effect causes a creature to become unprepared, a prepared creature stops being prepared and the associated copy of its prepare spell in exile ceases to exist. If it wasn't prepared at that time, nothing happens.
• 2026-03-20 A creature with a prepare spell can't become prepared more than once at the same time. For example, Emeritus of Ideation is on the battlefield and is prepared. When it attacks, its last ability triggers. When that ability resolves, its controller may still exile eight cards from their graveyard, but doing so won't cause Emeritus of Ideation to become prepared a second time or create a second copy of Ancestral Recall in exile.
• 2026-03-20 If a prepare spell with one or more targets has no legal targets when it tries to resolve, it won't resolve and none of its effects will happen. Since the spell was cast, the associated permanent will still not be prepared.
• 2026-03-20 A creature without a prepare spell can't become prepared.
• 2026-03-20 If a prepared creature stops being a creature, it will still be prepared, and the copy of its prepare spell will remain in exile. That permanent's controller will still be able to cast it. The same is true if a prepared creature becomes a copy of something else, even if it's then a permanent without a prepare spell.
• 2026-03-20 Being prepared isn't a copiable value. If a permanent becomes a copy of a prepared creature, it won't be prepared. That permanent will have the alternative characteristics, though, and some other effect could cause it to become prepared later.

Similar cards

Other creature cards with a blue colour identity, ranked by how often they appear in Commander decks.

• Archmage Emeritus
• Hullbreaker Horror
• Faerie Mastermind
• Spark Double
• Thassa's Oracle