Beholder’s Enervation

You shoot an entropic ray at a creature or object within range. Make a ranged spell attack against the target to assail it with accelerated decay. On a hit, the target takes 1d8 necrotic damage, and if it’s a creature, it can't regain hit points until the start of your next turn.

Additionally, you may focus your entropic ray for a minute to create one of the following minor decaying effects:

• Age a tiny sized object through decay by a decade.
• Spoil any food or water within a 15 ft cone.
• Wilt any plants and foliage within a 15 ft cone.
• Create a foul smell in a room that lingers for an hour. 

This spell's damage increases by 1d8 when you reach 5th level (2d8), 11th level (3d8), and 17th level (4d8).