Garo Assassin

Vigilance, Hexproof.
Garo Assassin has a +1/+1 counter for every
creature that dies during your turn until end of
turn.
Garo Assassin can only be blocked by one
creature and must attack alone.
When this creature is destroyed, exile it, target
player mills cards equal to this creatures power.
"To die without leaving a corpse...
That is the way of us Garo."