The rotting skeleton and muscles of this fanged, decaying horse seem barely able to hold together.
Plagued Horse CR 2
Demon Plague: Bite—injury; save Fortitude DC 13; onset 1 day; frequency 1/day; effect 1d3 Constitution damage and 1d6 Wisdom damage, victim is fatigued if it takes any ability damage from the disease, and certain creatures slain by demon plague rise as plagued beasts; cure 3 consecutive saves.
Organization solitary, pair, or herd (3–30)
Pathfinder Roleplaying Game Bestiary 5 © 2015, Paizo Inc.; Authors: Dennis Baker, Jesse Benner, John Bennett, Logan Bonner, Creighton Broadhurst, Robert Brookes, Benjamin Bruck, Jason Bulmahn, Adam Daigle, Thurston Hillman, Eric Hindley, Joe Homes, James Jacobs, Amanda Hamon Kunz, Ben McFarland, Jason Nelson, Thom Phillips, Stephen Radney-MacFarland, Alistair Rigg, Alex Riggs, David N. Ross, Wes Schneider, David Schwartz, Mark Seifter, Mike Shel, James L. Sutter, and Linda Zayas-Palmer.