Nenchuuj

Telepathy 100 feet (aura, magical) — A monster with telepathy can communicate mentally with any creatures within the listed radius, as long as they share a language. This doesn't give any special access to their thoughts, and communicates no more information than normal speech would.

Constant Spells — A constant spell affects the monster without the monster needing to cast it, and its duration is unlimited. If a constant spell gets counteracted, the monster can reactivate it by spending the normal spellcasting actions the spell requires.

+2 Status to All Saves vs. Magic —

Distort Magic (divine) —

Easy to Call — The sahkil is considered 2 levels lower for the purposes of being summoned by rituals (such as Binding Circle), but is always free to attack or leave instead of negotiate unless the primary caster's check is a critical success.

Skip Between (divine, teleportation) — The sahkil can move itself between the Ethereal Plane and the Material Plane, as Ethereal Jaunt, except that this ability has an unlimited duration and can be Dismissed.

Tainted Backlash — A creature Frightened by the sahkil's Mask of Terror is gripped with fear of the ways magic can go wrong.

The creature is Stupefied 2 for as long as it is frightened. If the creature Casts a Spell during its turn, it can't reduce its frightened condition at the end of that turn.