Tyrannosaurus Skeleton

A creature with void healing draws health from void energy rather than vitality energy. It is damaged by vitality damage and is not healed by vitality healing effects. It does not take void damage, and it is healed by void effects that heal undead.

The tyrannosaurus skeleton bends down, attempting to skewer one adjacent creature on one of its massive ribs. The creature takes (2d10+9) piercing damage (DC 28 reflex save). If the creature fails its save and is Medium or smaller, it's also impaled and stuck to the rib. It moves with the skeleton and takes 2d6 bleed until it either Escapes or someone uses Force open to break the rib (either is DC 28).

Huge or smaller, foot, DC 28 reflex The monster Strides up to double its Speed and can move through the spaces of creatures of the listed size, Trampling each creature whose space it enters. The monster can attempt to Trample the same creature only once in a single use of Trample. The monster deals the damage of the listed Strike, but trampled creatures can attempt a basic Reflex save at the listed DC (no damage on a critical success, half damage on a success, double damage on a critical failure).

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.