Stensian Sanguinist // Exsanguinate [78] [Extended Art] [Secrets of Strixhaven: Commander] [Non-Foil]

Whenever you attack, target creature gains deathtouch until end of turn. Whenever that creature deals combat damage to a player this combat, this creature becomes prepared. (While it's prepared, you may cast a copy of its spell. Doing so unprepares it.)