Apathy

Enchant creature Enchanted creature doesn't untap during its controller's untap step. At the beginning of the upkeep of enchanted creature's controller, that player may discard a card at random. If the player does, untap that creature.

From Magic: The Gathering.

Open the interactive version on https://mythscribe.cloud/app/tcg/cards/cms6ojoq0e8kdpb1hmc5b30c9.