unique n large divine mindless necromancy 

Variant roiling incant (Bestiary 3 215)

Perception +19; lifesense

Skills Acrobatics +22

Str +5 Dex +5 Con +7 Int -5 Wis +0 Cha -5

AC  31; Fort +24, Ref +22, Will +17

HP 190; Immunities bleed, death effects, disease, doomed, drained, fatigued, healing, mental, necromancy, negative, nonlethal attacks, paralyzed, poison, sickened, unconscious

Absorb Necromancy A protosoul is made of necromantic energy. Any time it would be affected by another creature's non-cantrip necromancy spell, after applying its immunity, it also regains 10 Hit Points.

Speed fly 40 feet

Melee [>] necromantic tendril +22 (divine, magical, necromancy, reach 10 feet), Damage 3d10+11 force

Ranged [>] necromantic bolt +22 (divine, magical, necromancy, range increment 30 feet), Damage 2d10+11 force

Divine Innate Spells DC 30, attack +22; 5th harm (at will, see Unstable Magic); 4th enervation (at will); 3rd sudden blight (at will); Cantrips (5th) chill touch

Engulf [>>] DC 30, 2d8 force plus 3d8 negative, Escape DC 30, Rupture 25

Unstable Magic The roiling protosoul can't be healed or Repaired, and is destroyed at 0 Hit Points. So long as it is not destroyed, it naturally recovers 77 Hit Points each day. Each time a roiling protosoul casts one of its non-cantrip spells, it drains its own magic to do so, taking 6 force damage.

Gatewalkers #3: Dreamers of the Nameless Spires, page 58.