Raving Dead

Deathtouch At the beginning of combat on your turn, choose an opponent at random. This creature attacks that player this combat if able. Whenever this creature deals combat damage to a player, that player loses half their life, rounded down.

From Magic: The Gathering.

Open the interactive version on https://mythscribe.cloud/app/tcg/cards/cms6oc0mu88k1pb1hquq040tv.