Chrollo Lucifer

Menace
{1}{b}, {t}: Copy target activated or triggered
ability you control. You may choose new targets
for the copy.
Whenever one or more Rogue or Assassin
creatures you control deal combat damage to a
player, that player mills a card.
"I believe that we have a soul. So I want to fulfill my
dead friend's wish... to wreak havoc."