Discover the Formula

Mana cost

{4}{U}{U}

Type

Instant

Set

Alchemy: Innistrad #15 (rare)

Seek three nonland cards, then nonland cards in your hand perpetually gain "This spell costs {1} less to cast."

Legality

• commander: not legal
• legacy: not legal
• vintage: not legal
• pauper: not legal
• modern: not legal
• pioneer: not legal
• standard: not legal
• brawl: legal