Gwent: The Witcher Card Game
Vampires have been known to fast for years at a time. Yet once the hunt resumes, they feed and feed until frenzied and drunk on blood.
Give an enemy unit Bleeding for 6 turns. If you control a Vampire, Purify it first.
See this subject on The Witcher wiki: Garkain
Gwent Update: Mar 28, 2019: Added.