Succubi speak Abyssal, Celestial, and Draconic.
Spell-Like Abilities: At will-charm monster, clairaudience/
clairvoyance, darkness, desecrate, detect good, detect thoughts,
doom, ethereal jaunt (self plus 50 pounds of objects only),
suggestion, and teleport without error (self plus 50 pounds of
objects only); 1/day unholy blight. These abilities are as the
spells cast by a 12th-level sorcerer (save DC 15 + spell level).
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 succubus's kiss or embrace inflicts one
negative level; the victim must succeed at a Wisdom check (DC 15)
to even notice. The Fortitude save to remove the negative level
has a DC of 18.
Summon Tanar'ri (Sp): Once per day a succubus can attempt
to summon one balor with a 10% chance of success. This is much
as though casting a summon monster spell. Summoned creatures
automatically return whence they came after 1 hour. A
tanar'ri that has just been summoned cannot use its own
summon ability for 1 hour.
Alternate Form (Su): Succubi can assume any humanoid form of
Small to Large size as a standard action. This ability is similar
to the polymorph self spell but allows only humanoid forms.
*While using this ability, a succubus gains a +10 circumstance
bonus to Disguise checks.
Tongues (Su): A succubus has a permanent tongues ability as
the spell cast by a 12th-level sorcerer. Succubi usually use
verbal communication with mortals and save telepathic
communication for conversing with other fiends.
Immunities (Ex): A succubus is immune to poison and
Resistances (Ex): A succubus has cold, fire, and acid
Telepathy (Su): A succubus can communicate telepathically
with any creature within 100 feet that has a language.
Skills: Succubi receive a +8 racial bonus to Listen and Spot
checks. *When using alternate form, a succubus receives an additional
+10 circumstance bonus to Disguise checks.