Succubus

History
The succubus is a demon. It is capable of turning into a man's ultimate  woman to charm him and make him completly blind. Due to their amazing charms often succubuses are never found and can simply live among others, yet, even though these demons are mostly in disguise it is still possible for a high leveled mage to see through her disguise and see the ugly monster that she really is. It is mostly strong muscled man the Succubi goes after for mostly they do not know magic.

Tactic
Mostly non-magic users are targeted by the Succubi. This is because magic users can see through their disguise.

Other
Succubi can also be tamed by a summoner and can become a summoning creature.