Nicol Bolas, Spark Eater

Flying, Indestructible, Protection from Planeswalkers

Nicol Bolas, Spark Eater costs {3} less to cast if a planeswalker died this turn.

At the beginning of combat, each planeswalker loses
2 loyalty points and Nicol Bolas, Spark Eater get's
+X/+X and menace until end of turn, where X is
the total number of loyalty points removed this way.