Arcane Subtraction (STX)

Instant

Target creature gets -4/-0 until end of turn. Learn. (You may reveal a Lesson card you own from outside the game and put it into your hand, or discard a card to draw a card.)

Niche tempo removal for blue control decks, but the -4/-0 effect is narrow (only stops creatures temporarily) and competes with efficient permanent answers like Counterspell and Solitude in formats where it's legal. The Learn mode adds flexibility, but doesn't compensate for the card's limited impact in a removal-heavy metagame.

Strixhaven: School of Mages — Common