Fiend of the Pit (Su)
At 20th level, you gain immunity to fire and poison. You also gain resistance 10 to acid and cold, and you gain the see in darkness ability. You have these benefits constantly, even while not bloodraging.
Undead The foul corruption of undeath is a part of you. Somewhere in the past, death became infused with your lineage. Your connection to the attributes of the undead bestows frightening power when you bloodrage.
Bonus Feats: Diehard, Dodge, Endurance, Intimidating Prowess, Iron Will, Mobility, Toughness.
Bonus Spells: Chill touch (7th), false life (10th), vampiric touch (13th), enervation (16th).
Bloodline Powers: When you enter a bloodrage, the powers of undeath manifest, empowering your attacks with fear and your body with foul resistances.