Vitalia

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 vitalia can detect any creatures that have a heartbeat.

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

Trigger A creature lands a critical hit with a melee Strike against the vitalia Effect The vitalia sprays blood at the triggering creature. The creature must succeed at a DC 39 reflex save or become Dazzled for 1 round (or Blinded for 1 round on a critical failure).

(4d8+10) bludgeoning damage, DC 37 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.

Requirements The vitalia is Grabbing a creature

The vitalia inserts some of its veins into the grabbed creature and pumps violently, rapidly exchanging the victim's blood with its own. Any diseases or poisons affecting the vitalia can be transmitted to the target creature, which must make a saving throw as though it had just been targeted with the original affliction. The inverse is true as well; the vitalia must successfully save against any diseases or poisons affecting the target or contract the affliction.

Frequency once per day Effect The vitalia pumps copious amounts of blood into the air, creating a cascading rain of vital fluids in a 15-foot emanation. All creatures in the area are Concealed from one another. A creature that benefits from consuming blood (such as bloodseekers or vampires) gains fast healing 10 while in the area. While in the area, a creature taking persistent bleed damage cannot end that condition, even if it spends actions to attempt a flat check to do so. The rain lasts for 1 minute. Effect: Sanguine Rain

Requirements The monster's last action was a successful Strike that lists 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. This attempt neither applies nor counts toward the creature's multiple attack penalty. 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.