Corpse Visage

This spell transforms the caster's face or the face of any creature touched by the caster into the horrifying visage of a rotting corpse. The effect of this illusion is so startling that when it is viewed by opponents, the caster party adds a  +2 to their initiative roll. Creatures with Intelligence of 5 or greater must make a WIS saving throw when first viewing corpse visage or flee in terror for 1D4 rounds. Corpse visage does not distinguish between friend and foe, and all who view it are subject to its effects. If the spell is cast upon an unwilling victim, the victim is allowed a WIS saving throw to avoid the effect. 

Cast at a higher level it will last 1 additional round per spell lv