From Pathfinder #209: Destroyer's Doom, which isn't enabled.

Bull Stampede

COMPLEX HAZARD 11

Stealth +23 (trained) to anticipate the herd's movements

Description Agitated aurochs trample through the streets.

Disable Four DC 27 Athletics, DC 27 Intimidation, DC 27 Nature (expert), or DC 27 Survival (expert) checks to guide the herd, find it paths through Stockside, or keep it in line.

Rampage

Trigger A creature frees the bulls from the stable

Effect The hazard rolls initiative as the bulls stampede.

Routine

(1 action) The stampede advances, trampling everything in its path. Each creature attempting to control the stampede must attempt a DC 30 Reflex save or be caught up in the stampede, taking 2d12+15 bludgeoning damage; a creature who succeeded at a skill check to disable the hazard this round has a +1 circumstance bonus to the Reflex save.

Critical Success The creature takes no damage.

Success The creature takes half damage.

Failure The creature takes full damage.

Critical Failure The creature takes double damage and cannot attempt to disable the hazard next round, as they must spend it extricating themselves from the stampede.

Pathfinder #209: Destroyer's DoomORC