Destroyer of the Horny

Haste, Double Strike, Indestructible, Protection
from Demons, Devils, Humans, and Gods
Whenever a creature dies, if it was a creature
under your control you gain 1 life other wise
put a +1/+1 on Destroyer of the Horny.
{x}: Destroy target creature with toughness
of X, where X is half that creatures toughness
rounded up.