Grimes, the Techno-Nymph

Genesis— Whenever a player casts a spell from
exile or from their graveyard or library, you
get {e}.
Oblivion— Whenever you become the target of a
spell or ability you don't control, you get {e}.
Shinigami Eyes— Pay X {e}, {t}: Grimes deals X
damage to any target. Damage dealt this way
can't be prevented.