Emerald golem

Emerald golems have facets of dark green, often with sparks in their eyes. No matter how an emerald golem is carved, it will slowly transform to a female form. Like other gemstone golems, they are immune to most magic.

Special abilities
An emerald golem has 30/+2 damage reduction and the usual construct immunities to critical hits, death magic, disease, level drain, ability drain, mind-affecting spells, paralysis, poison, and sneak attacks. In addition, this creature is immune to spells of every spell school except evocation.