Nicol Bolas, the Defeated

Nicol Bolas, the Defeated begins the game in
exile. Flying
Whenever a planeswalker dies or is exiled, Nicol
Bolas gains flash and you may cast him from
exile this turn.
Whenever a planeswalker takes 1 or more
damage this turn, put a +1/+1 counter on Nicol
Bolas.