Iuccubi stand 6 feet tall in its natural form and weighs about 125 pounds.
The female child of a succubus and a human is traditionally called an Alu-fiend and the male child a Cambion. However, the offspring of an alu-fiend or cambion's union with a human has no specific name but falls into the larger category of tiefling.
A iuccubus appears as a stunningly beautiful male. They often use their polymorph ability to assume a form in order to tempt mortals with a kiss, or other acts of passion. After which the victim may become weakened and under the control of the iuccubus.
Succubi are not warriors. They flee combat whenever they can. If forced to fight, they can attack with their claws, but they prefer to turn foes against one another. Succubi use their polymorph ability to assume humanoid guise, and can maintain this deception indefinitely. Their preferred tactic when dealing with heroes is to feign friendship and create an opportunity to be alone with one of them, whereupon the succubus applies her life-draining kiss. Succubi are not above taking on the role of a damsel in distress when encountered within a dungeon.
- A succubus’s natural weapons, as well as any weapons it wields, are treated as chaotic-aligned and evil-aligned for the purpose of overcoming damage reduction.
- Energy Drain (Su): A succubus drains energy from a mortal it lures into some act of passion, or by simply planting a kiss on the victim. If the target is not willing to be kissed, the succubus must start a grapple, which provokes an attack of opportunity. The kiss also has the effect of a suggestion spell, asking the victim to accept another kiss from the succubus.
- Spell-Like Abilities: At will—charm monster, detect good, detect thoughts, ethereal jaunt (self plus 50 pounds of objects only), polymorph (humanoid form only, no limit on duration), suggestion, greater teleport (self plus 50 pounds of objects only).
- Summon Tanar’ri (Sp): Once per day a succubus can attempt to summon 1 vrock.
- Tongues (Su): A succubus has a permanent tongues ability. Succubi usually use verbal communication with mortals.
- Skills: Succubi have a racial bonus on Listen and Spot checks.
- While using her alter self ability, a iuccubus gains a bonus on Disguise.