Chyzaedu

Tremorsense allows a monster to feel the vibrations through a solid surface caused by movement. It is an imprecise sense with a limited range (listed in the ability). Tremorsense functions only if the monster is on the same surface as the subject, and only if the subject is moving along (or burrowing through) the surface.

The chyzaedu wears an eerie, alien layer of shimmering violet mucus that slithers and crawls over its flesh, but is hard as iron to the touch.

If a chyzaedu takes bludgeoning damage from a critical hit, its alien vestment is shattered—this reduces its AC to 27 and causes it to lose its resistance to mental and physical damage; it can grow a new alien vestment by concentrating for 1 hour.

30 feet. A chyzaedu gains sustenance by feeding upon the metabolisms of organic victims. A living creature that ends its turn in the aura must attempt a DC 27 Will save.

Critical Success The creature is unaffected and is temporarily immune for 24 hours.

Success The creature suffers a painful hunger pang, becoming Off-Guard for 1 round.

Failure If possible, the creature spends its first 2 actions on its next turn eating or drinking (or spending actions to procure food or drink from its possessions or the surroundings, if necessary). The creature won't consume anything dangerous, but will eat things it normally has no appetite for.

Critical Failure As failure, but the creature will eat or drink dangerous consumables, such as poison or rotten food, if other food or drink are not immediately available. The creature must spend its first 2 actions each round consuming for as long as it remains in the chyzaedu's aura plus 1 minute thereafter, but the creature can attempt a new saving throw at the end of its turn each round to end the effect early.

Note: A DC was not provided for this ability by Paizo. The DC present here is a moderate DC for the creature level according to the Gamemastery Guide creature building Tables.

Medium, 3d8+7 bludgeoning, Rupture 26

The monster attempts to swallow a creature of the listed size or smaller that it has grabbed or restrained in its jaws or mouth. If a swallowed creature is of the maximum size listed, the monster can't use Swallow Whole again. If the creature is smaller than the maximum, the monster can usually swallow more creatures; the GM determines the maximum. The monster attempts an Athletics check opposed by the grabbed creature's Reflex DC. If it succeeds, it swallows the creature. The monster's mouth or jaws no longer grab a creature it has swallowed, so the monster is free to use them to Strike or Grab once again. The monster can't attack creatures it has swallowed.

A swallowed creature is Grabbed, is Slowed 1, and has to hold its breath or start suffocating. The swallowed creature takes the listed amount of damage when first swallowed and at the end of each of its turns while it's swallowed. If the victim Escapes this ability's grabbed condition, it exits through the monster's mouth. This frees any other creature grabbed in the monster's mouth or jaws. A swallowed creature can attack the monster that has swallowed it, but only with unarmed attacks or with weapons of light Bulk or less. The swallowing creature is Off-Guard against the attack. If the monster takes piercing or slashing damage equaling or exceeding the listed Rupture value from a single attack or spell, the swallowed creature cuts itself free. A creature that gets free by either Escaping or cutting itself free can immediately breathe and exits the swallowing monster's space.

Effect: Engulf and Swallow Whole

If the monster dies, a swallowed creature can be freed by creatures adjacent to the corpse if they spend a combined total of 3 actions cutting the monster open with a weapon or unarmed attack that deals piercing or slashing damage.

The monster can instead use Grab and choose one creature it's grabbing or restraining with an appendage that has Grab to automatically extend that condition to the end of the monster's next turn.