Generations ago, a demon spread its filth into your heritage. While it does not manifest in all of your kin, for you it is particularly strong. You might sometimes have urges to chaos or evil, but your destiny (and alignment) is up to you.

Class Skill

Knowledge (planes).

Bonus Spells

cause fear (3rd), bull’s strength (5th), rage (7th), stoneskin (9th), dismissal (11th), transformation (13th), greater teleport (15th), unholy aura (17th), summon monster IX (19th).

Bloodline Arcana

Whenever you cast a spell of the summoning subschool, the creatures summoned gain 5 DR/good.

Bloodline Powers

While some would say that you are possessed, you know better. The demonic influence in your blood grows as you gain power.

Claws (Su): Starting at 1st level, you grow claws. These claws are treated as natural weapons. These attacks deal 1d4 points of damage each plus your Strength modifier. At 5th level, these claws are considered magic weapons for the purpose of overcoming DR. At 7th level, the damage increases by one step to 1d6 points of damage. At 11th level, these claws become flaming weapons, each dealing an additional 1d6 points of fire damage on a successful hit.

Demon Resistances (Ex): At 3rd level, you gain resist electricity 5 and a +2 bonus on saving throws made against poison. At 9th level, your resistance to electricity increases to 10 and your bonus on poison saving throws increases to +4.

Strength of the Abyss (Ex): At 9th level, you gain a +2 inherent bonus to your Strength. This bonus increases to +4 at 13th level, and to +6 at 17th level.

Added Summonings (Su): At 15th level, whenever you summon a creature with the demon subtype or the fiendish template using a summon monster spell, you summon one additional creature of the same kind.

Demonic Might (Su): At 20th level, the power of the Abyss flows through you. You gain immunity to electricity and poison. You also gain resistance to acid 10, cold 10, and fire 10, and gain telepathy with a range of 60 feet (allowing you to communicate with any creature that can speak a language).