Chilling Grasp

Instant — {2}{U}

Tap up to two target creatures. Those creatures don't untap during their controller's next untap step.
Madness {3}{U} (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)

Rarity: uncommon

EDHREC rank: 25544