Testiculus explodus

When this spell is cast, the balls of the target explode as though they were filled with gunpowder, causing serious trauma and pain, though also killing the target if they are small enough (for example, a goblin would likely die to this spell, but something like a giant might die slowly from bloodloss.  

 target must succeed a Dex saving throw of 16

on a successful casting there testicles instantly explode doing 8d6 of force damage as well as 1d6 of fire damage that lasts 3 turns.  target falls uncouncous and takes 1d4 bleeding for either 10 turns or bleeding is stopped.  frightens any nearby enemies with in sight of this horrid event 

on a fail the targets testicles feel slightly hot and take an instant 1d4 of fire damage