Miara, Yahennis' Prodigy

Soulless(Sacrifice this creature at the beginning
of your next step. Then, create a 1/1 blue spirit token with this creatures abilities other than soulless and create a 4/4 blue zombie creature
token with no abilities.)
Whenever a creature enters the battlefield, put a +1/+1 counter on Miara, Yahennis' Prodigy
Remove three +1/+1 counters: Counter target spell unless it's controller pays {2}