Cantankerous Mounts. Gentleness and a regular source of food temporarily earns the cryoceroses' trust, and patient humanoids can manage to train the creatures to accept riders. This works for convenience much more than for combat, since cryoceroses balk at fighting with loads on their backs. A cryoceros in combat with a rider either stands stock still until its rider dismounts or, worse, rolls over to throw its rider, often crushing the rider in the process. Because of this, most tribes who train cryoceroses use the creatures as beasts of burden rather than war mounts.