Undeath to Death

Undeath to Death snuffs out the animating forces of undead creatures, killing them instantly.

The spell slays 11d4 HD worth of undead creatures. Creatures with the fewest HD are affected first; among creatures with equal HD, those closest to the point of origin of the burst are affected first.

 At Higher Levels. When you cast this spell using a spell slot of 7th level or higher, the number of HD affected increases by 1d4 for each slot level above 6th.