Threshold Kerulkagon

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.

The monster can cast its at-will spells any number of times without using up spell slots.

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.

A kerulkagon can't be teleported against its will.

Trigger A creature within the kerulkagon's reach uses a move action or leaves a square during a move action it's using Effect The kerulkagon makes a melee Strike against the triggering creature. If the attack is a critical hit, the action is disrupted.

Frequency once per round Effect The kerulkagon creates a momentary portal next to a creature within 30 feet and makes a melee Strike through the portal as if the target were within its reach. The target is Off-Guard and gains no cover against the Strike.

Frequency once per round Effect The kerulkagon teleports to an unoccupied space it can see within 30 feet.

Requirements The kerulkagon has a creature Grabbed or Restrained

The kerulkagon creates a portal and attempts to throw the required creature through it. The kerulkagon attempts an athletics check against the Fortitude DC of the creature it has grabbed or restrained. Critical Success The kerulkagon hurls the target through the portal. The target is teleported violently to a location with 100 feet that the kerulkagon can see, dealing 12d10 bludgeoning damage to the target and knocking it Prone on impact. Success As critical success, but the target takes only 6d10 bludgeoning damage. Failure The kerulkagon fails to throw the creature. Critical Failure As failure, but the creature is no longer grabbed or restrained.

Trigger The monster's last action was a successful Strike that lists Improved Grab in its damage entry, or the monster has a creature Grabbed or Restrained Effect If used after a Strike, the monster attempts to Grapple the creature using the body part it attacked with as a free action. This attempt neither applies nor counts toward the creature's multiple attack penalty. The monster can instead use Improved Grab as an action and choose one creature it's grabbing or restraining with an appendage that has Improved Grab to automatically extend that condition to the end of the monster's next turn.