Icy Blast - Khans of Tarkir - 42

Instant

Mana Cost: {X}{U}

Tap X target creatures.
Ferocious — If you control a creature with power 4 or greater, those creatures don't untap during their controllers' next untap steps.

Rare · Khans of Tarkir · #42 (KTK)

Illustrated by Eric Deschamps