Priest of Morzzfang

Lifelink, Deathtouch

While Priest of Morzzfang is on the battlefield, other humans you control get +1/+1.

{t} and sacrifice a human - target creature you control gets +X/+X until the end of your turn where
X is equal to the sacrificed creature's power and toughness combined.
-Consider it a privilege to sacrifice your life.