Corpse Crescendo

You pour blood mixed with gunpowder between your hands commanding up to Three corpses Large size or smaller to charge with necrotic energy and leap 10ft towards a point of your chosing, exploding into a violent burst of bones, flesh and necrotic energy destroying the corpse upon reaching that point, forcing creatures within 10ft radius of the chosen points to make Dexterity saving throws. A target that fails the saving throw takes 2d6 piercing and 2d6 necrotic damage or half as much on a successful one. 

The spell may also target Undead Creatures forcing them to make a Constitution save instead. Upon failure the undead takes the damage forcing the Dexterity save on those near it, should the damage put the undead creature at 0 hit points they are destroyed ignoring effects like Undead Fortitude and Regeneration, on success the spell takes no effect on the creatures. 

Corpses that have been used by the spell are no longer viable for undead raising effects, unless repaired somehow. However they are still recognizable and items they carry are left intact.

At Higher Levels. When you cast this spell using a spell slot of 4th level or higher, you may target a additional corpse or undead creature for each slot level above 3rd.