Sard
CREATURE 19An immense, gnarled, tree awoken with raw, primal power by one of the fey Eldest of the First World, this monster-one of the legendary Tane-skitters on huge, spidery roots and thrashes its branches as fiery lightning courses within its blackened bark, a living manifestation of the violent clash between ancient forest and stormy sky.
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 sard treats the plane it is located on as its home plane.
When the sard dies, its body explodes in a 30-foot emanation. All creatures in the area take 10d6 electricity damage and 10d6 piercing damage (DC 43 basic Reflex save). Any creature that takes piercing damage is also exposed to sard venom.
The sard makes up to four thorn Strikes, each against a different target. The sard's multiple attack penalty doesn't increase until after all the attacks have been made.
Huge or smaller, root, DC 39 basic 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).