Toth-Amon's Voidspawn

Protection from non-artifact and from
non-green permanents (This creature can’t
be blocked, targeted, dealt damage, enchanted,
or equipped by anything non-artifact and
non-green permanents.)
{2}{b}, Sacrifice another creature: Toth-
Amon's Voidspawn gets +X/+X until end
of turn, where X is sacrificed creature's power.