This enemy is one of the foes found in Scorn of the Beasts of the Dark II
Formidable enemies that use powerful earth, ice, and dark attacks. Note that Dark Golem will shield against attacks and use damage cut, while Dark Shiva will inflict your units with charm and zombie as she fires off magic attacks.
Dealing with these two as a unit can be troublesome, so it would be best to concentrate on taking one of them down first.
Attacks intended for stone-type enemies should prove effective against Dark Golem, while Dark Shiva will be most susceptible to attacks intended for human-type enemies.