Billie, Death

Indestructible, hexproof, flying, deathtouch
This spell costs {1} less to cast for each Hunter
you control.This spell can not be countered.

When Billie enters the battlefield or attacks,
destroy target creature an opponent controls.

"It's you Dean. It's always been you. Death
defying, rule breaking. You are everything I
lived to set right. To put down. To tame. You
are human incarnate."