Ravenous Bloodseeker
Shadows over Innistrad — uncommon
Creature — Vampire Berserker
Ravenous Bloodseeker rulings:
2016-04-08: You can activate Ravenous Bloodseeker’s ability any number of times to discard several cards. It will be put into its owner’s graveyard once its toughness is 0 or less. Any other instances of the ability still on the stack will resolve with no effect.