le large humanoid negative 

Perception +29; greater darkvision, scent (imprecise) 30 feet

Languages Aklo, Necril

Skills Athletics +32, Intimidation +30, Stealth +35, Survival +29

Str +8 Dex +9 Con +3 Int +6 Wis +5 Cha +4

AC  39; Fort +25, Ref +33, Will +27

HP 290, negative healing; Immunities death effects, drained

Attack of Opportunity [R]

Hunter's Triumph [R] (auditory, emotion, fear, mental) Trigger The sumbreiva kills a creature; Effect The sumbreiva lets out a triumphant, bone-chilling howl. Every enemy in a 30-foot emanation must succeed at a DC 36 Will save or become frightened 3 (and fleeing as long as it's frightened on a critical failure).

Speed 50 feet

Melee [>] sumbreiva huntblade +33 (agile, death, finesse, magical, versatile s), Damage 3d8+16 piercing plus huntblade brutality

Melee [>] shadow whip +33 (agile, death, disarm, finesse, magical, reach 10 feet, trip), Damage 3d4+16 bludgeoning plus Improved Grab

Ranged [>] sumbreiva huntblade +33 (agile, death, magical, thrown 30 feet, versatile s), Damage 3d8+16 piercing plus huntblade brutality

Arcane Innate Spells DC 36; 4th darkness, earthbind

Claim Trophy [>] The sumbreiva claims the soul of a creature they killed within the last minute. This works like bind soul, except that no black sapphire is required and the soul is turned into a glowing blue light called a soul trophy. Anyone who kills the sumbreiva can then free the soul from any soul trophy by touching it and speaking the word for "freedom" in any language.

Huntblade Brutality The sumbreiva's huntblade deals an additional 2d8 damage to drained, flat-footed, or frightened creatures.

Whip Drain [>] (arcane, death, necromancy) Requirements The sumbreiva has a creature grabbed with their shadow whip; Effect The grabbed creature must succeed at a DC 38 Fortitude save or become drained 2 (drained 3 on a critical failure). If the creature is already drained, this increases its drained value instead, to a maximum of drained 4.

Bestiary 3, page 260.