ne medium fiend sahkil 

Perception +18; darkvision, true seeing

Languages Abyssal, Celestial, Infernal, Requian; telepathy 100

Skills Acrobatics +18, Deception +21, Diplomacy +21, Intimidation +21, Stealth +18

Str +4 Dex +5 Con +4 Int +2 Wis +3 Cha +6

Easy to Call A sahkil's level is considered 2 lower for the purpose of being conjured by the planar binding ritual (and potentially other rituals, at the GM's discretion), but it is always free to attack or leave instead of negotiate unless the primary caster's check is a critical success.

AC  26; Fort +17, Ref +18, Will +20

HP 140; Immunities poison, fear; Weaknesses good 5

Entangling Train [R] Trigger A creature moves adjacent to the pakalchi; Effect Writhing, pitch-black vines wrap around the creature. The creature takes 1d6 slashing damage and takes a –15-foot circumstance penalty to its Speeds until the end of its next turn.

Speed 30 feet

Melee [>] vine +18 (finesse, reach, versatile p), Damage 2d10+6 slashing plus 1d6 evil, 1d6 persistent bleed, and betrayal toxin

Melee [>] claw +18 (agile, finesse), Damage 2d10+6 slashing plus 1d6 evil

Ranged [>] thorn +18 (agile, range increment 50 feet), Damage 2d4+6 piercing plus 1d6 evil, 1d6 persistent bleed, and betrayal toxin

Divine Innate Spells DC 30; 7th mask of terror (self only); 6th dominate; 5th charm, calm emotions, suggestion (at will); Cantrips (5th) detect magic; Constant (6th) tongues, true seeing

Betrayal Toxin (divine, enchantment, mental, poison) A creature affected by betrayal toxin hears whispers of incessant doubt in their head and can't treat any creature as their ally Saving Throw DC 28 Fortitude; Maximum Duration 6 rounds; Stage 1 stupefied 1 (1 round); Stage 2 stupefied 2 (1 round)

Skip Between [>] (conjuration, divine, teleportation) The sahkil moves from the Material Plane to the Ethereal Plane or vice-versa, with the effects of ethereal jaunt except that the effect has an unlimited duration and can be Dismissed. A summoned sahkil can't use Skip Between.

Bestiary 3, page 220.