le large construct devil fiend 

Perception +16; greater darkvision

Languages Celestial, Infernal; telepathy 100 feet

Skills Acrobatics +14, Athletics +17, Intimidation +14, Religion +14

Str +6 Dex +3 Con +4 Int +2 Wis +3 Cha +1

Hellstrider A levaloch ignores the effects of non-magical difficult terrain. They take no damage from caltrops or from damaging terrain that deals physical, acid, or cold damage. A levaloch can move through liquids up to 5 feet deep at their full Speed.

AC  25; Fort +17, Ref +14, Will +12

HP 105; Immunities fire, poison, death effects, disease, doomed, drained, fatigued, healing, necromancy, nonlethal attacks, paralyzed, sickened, unconscious; Weaknesses good 5

Phalanx Fighter All devils of equal or lower level adjacent to a levaloch gain a +1 circumstance bonus to their AC as the levaloch shields them from harm.

Stable Stance A levaloch gains a +2 circumstance bonus to their Fortitude DC against being Shoved and to other saving throws to resist being moved against their will.

Speed 30 feet, climb 30 feet

Melee [>] trident +19 (evil, magical), Damage 2d8+9 piercing plus 1d6 evil and merciless thrust

Ranged [>] trident +16 (evil, magical, thrown 20 feet), Damage 2d8+9 piercing plus 1d6 evil

Ranged [>] barbed net +16 (magical, range increment 20 feet), Effect barbed net

Barbed Net When a levaloch hits a creature with their barbed net, the net wraps around the target, which becomes clumsy 1 and takes a –10-foot circumstance penalty to its Speeds. If the Strike was a critical success, the target is also immobilized. When a creature Escapes (DC 22), or if the Strike misses, the net crumbles into rust. Each time a creature attempts to Escape, it takes 1d6 slashing damage from the net's barbs, regardless of whether the attempt succeeds.

Forge Weapon [>] (manipulate) A levaloch reforges part of their barbed iron substance into a new +1 striking trident or barbed net. Their previous trident crumbles to rust. When the levaloch is destroyed, any tridents or barbed nets they created crumble to rust.

Merciless Thrust When a levaloch hits a creature that has the clumsy, enfeebled, immobilized, or restrained conditions with a melee trident Strike, the Strike deals an additional 2d6 damage.

Bestiary 3, page 65.