Arya Stark

First Strike
When Arya Stark enters the battlefield put a list counter on up to three target creatures that you
don't control.
Whenever a creature with a list counter on it dies,
exile it instead of putting it in it's owner
graveyard and put a +1/+1 counter on Arya
Stark.
{2}{w}{w}: Arya Stark becomes a copy of any
creature exiled with a list counter on it, except its
name is still Arya Stark and it has this ability.