Caustic Necrosia

You draw in a deep breath and release a pulse of flesh eating bacteria towards from every creature in a 30-foot cone centered on your sight you within range. Each creature in that area must make a Constitution saving throw. Constructs, undead and elementals aren’t affected. A creature takes 8d8 necrotic damage on a failed save, or half as much damage on a successful one.

Nonmagical plants in the area that aren’t creatures, such as trees and shrubs, wither and die instantly.