Id, The Demon of Elru

First Strike, Flying, Menace

{b}{r},{t}, Sacrifice a creature or artifact: Id, The Demon of Elru deals damage equal to the sacrificed creature or artifact's converted mana cost to any target.

Whenever a creature comes into play, Id, The Demon of Elru deals 3 damage to it. Whenever a creature is put into the graveyard from play, destroy target artifact.

"The one you call Fei is asleep. When I awake, he sleeps. That is why he has no memory of what I do."