Pale Moor Baba Yaga

{1}{b}, {t}: Pale Moor Baba Yaga fights target creature. Whenever a creature dies this way, put a +1/+1 counter on Pale Moor Baba Yaga
As long as Pale Moor Baba Yaga has 2 or more +1/+1 counters on it, it has Trample
As long as Pale Moor Baba Yaga has 3 or more +1/+1 counters on it, it has Lifelink
As long as Pale Moor Baba Yaga has 4 or more +1/+1 counters on it, it has Hexproof