Izfiitar

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.

A Izfiitar can anticipate the most likely location of a creature through their supernatural insight into the forces of chaotic probabilities and chance. This grants the izflitar the ability to sense creatures within the listed range.

The izflitar's entropy sense doesn't detect creatures under the effects of Veil of Privacy or that are otherwise shielded from divinations and predictions.

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 monster with this ability regains the given number of Hit Points each round at the beginning of its turn.

The izfiitar continuously tinkers with the myriad possibilities in which it can move or manipulate magic. The izfiitar is always Quickened and can use the extra action only to Step, Stride, or as part of Casting a Spell.

A izfiitar's vital organs shift and change shape and position constantly. Immediately after the izfiitar 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 izfiitar is immune to polymorph effects unless it is a willing target. If Blinded or Deafened, the izfiitar automatically recovers at the end of its next turn as new sensory organs grow to replace the compromised ones.

Effect: Protean Anatomy

The izfiitar takes the appearance of any Huge 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.

The monster changes its shape indefinitely. It can use this action again to return to its natural shape or adopt a new shape. Unless otherwise noted, a monster cannot use Change Shape to appear as a specific individual. Using Change Shape counts as creating a disguise for the Impersonate use of Deception. The monster's transformation automatically defeats Perception DCs to determine whether the creature is a member of the ancestry or creature type into which it transformed, and it gains a +4 status bonus to its Deception DC to prevent others from seeing through its disguise. Change Shape abilities specify what shapes the monster can adopt. The monster doesn't gain any special abilities of the new shape, only its physical form. For example, in each shape, it replaces its normal Speeds and Strikes, and might potentially change its senses or size. Any changes are listed in its stat block.

2d8+17 bludgeoning damage, DC 44 basic Fortitude

The monster deals the listed amount of damage to any number of creatures Grabbed or Restrained by it. Each of those creatures can attempt a basic Fortitude save with the listed DC.

Any creature struck and damaged by an izfiitar's jaws or claw Strike must succeed at a DC 42 Fortitude save or be subject to a particularly powerful Warpwave.

Roll twice and apply both affects, rerolling any duplicates.

When the izfiitar casts Mirage, it infuses the illusion with quasi-real substance. Creatures that don't 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.

The izfiitar makes up to six claw Strikes, each against a different target.

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.