Black Blood Bloodline (Bloodrager)

At 1st level, your blood runs thick with black blood. You are immune to the effects (both beneficial and destructive) of black blood. You have this benefit constantly, even while not bloodraging. When you take damage from a slashing or piercing attack while bloodraging, as an immediate action you can grant your melee attacks the frost weapon special ability for 2 rounds.

You can use this ability three times per day.

At 4th level, the black blood pumping within you twists and elongates your limbs. Your reach increases by 5 feet.

At 8th level, you gain resistance 5 to cold and a +2 bonus on saving throws against ability drain, death effects, disease, energy drain, paralysis, and poison. At 16th level, this resistance increases to 10 and the saving throw bonus increases to +4.

At 12th level, whenever you’re hit by an attack or spell that deals slashing or piercing damage, your black blood sprays up to 10 feet toward the opponent who attacked you, striking the first creature along its path.

That creature takes 1d8 points of cold damage + 1 point of cold damage for every 2 bloodrager levels you possess. A successful Reflex save (DC = 10 + 1/2 your bloodrager level + your Constitution modifier) halves the damage.

At 16th level, when you confirm a critical hit, some of your black blood seeps into the target’s wounds. The next time the target would be healed by positive energy, the healing burns away the black blood and ends this effect, providing no other benefit. This ability is not effective against creatures that have no blood. The black blood transfusion persists until it negates one positive energy healing effect, but it can be removed sooner with a successful DC 25 Heal check.

At 20th level, you gain immunity to cold, nonlethal damage, critical hits, and sneak attacks. You have this benefit constantly, even when not bloodraging.