Shrieker of Dismay

{x},{t}, put {x} +1/+1 counters on
Shrieker of Dismay.

{b}{w}{b}{w}, create a 4/4 angel with flying and vigilance

Remove {x} +1/+1 counters from Shrieker of Dismay, when you do, you gain {x} life.

{b}{w}{w/b}{w/b}, exile target permanent(this ability can be activated only once per turn