Chill of the Grave⁣ - Innistrad: Crimson Vow⁣ (Common)⁣ [51]

Chill of the Grave is an instant spell that allows you to tap an opponent's creature, preventing it from untapping during its controller's next untap step, which effectively delays its use in combat or for abilities. If you control a Zombie, the spell becomes cheaper to cast, making it more efficient, and you also get to draw a card after resolving the spell. You'd want to play this card to hinder your opponent's plans by temporarily disabling a key creature while also replenishing your hand, but its downside is that it doesn't remove the creature from the battlefield, so it can still be a threat later on.