Hestriviniaas

Hestriviniaas can anticipate the most likely presence of a creature through a supernatural insight into chaotic probabilities and chance. This grants it the ability to sense creatures within the listed range.

A creature under the effects of Veil of Privacy or that is otherwise shielded from divinations and predictions cannot be noticed via entropy sense.

Hestriviniaas' vital organs shift and change shape and position constantly. Immediately after the Hestriviniaas takes acid, electricity, or sonic damage, it gains the listed amount of resistance to that damage type.

This lasts for 1 hour or until the next time the protean takes damage of one of the other types (in which case its resistance changes to match that type), whichever comes first. The keketar is immune to polymorph effects unless it is a willing target.

If Blinded or Deafened, the

30 feet. A creature using a teleportation ability within the aura or arriving in it via teleportation must succeed at a DC 45 fortitude save or wink out of existence for before completing the teleport. The creature can't act, sense anything, or be targeted. On a successful save, the creature completes the teleport normally but is Stunned 1.

Keketars are immune to this effect.

Hestriviniaas can take the appearance of any Gargantuan or smaller creature. This doesn't change its Speed or its attack and damage bonuses with its Strikes, but might change the damage type its Strikes deal.

(2d12+21)[bludgeoning] damage, DC 44 fortitude

When Hestriviniaas casts Mirage, it infuses the illusion with quasi-real substance. Creatures that do not disbelieve the illusion treat structures and terrain created through the spell as though they were real, ascending illusory stairs, becoming trapped by illusory quicksand, and so on.

A creature struck by Hestriviniaas' jaws or claw Strike must succeed at a DC 45 fortitude save or be subject to a Warpwave.