Two 31 p stabs to an arabian, the arabian lives. Nerf horse health.
Health of average horse:
100hp
31p + 6PS (average +/- amount of PS) = 31p * 148% ~~ 46p
Say that horse was hit without any positive nor negative bonuses:
100hp - 2 * 46p = 100hp - 92 = 8 hp left.
Note, I COMPLETELY ignore armor damage reduction, speed bonus and other aspects of damage calculation.
EDITSorry for double post, thought I was editing.