Pestilence

Cantrip (conjuration; nature, summoning)
Class(es): Cleric, druid, sorcerer, warlock, wizard
Casting Time: 1 Action
Range: Medium (60 feet)
Area: 10-foot sphere
Components: V, S
Duration: Concentration (1 minute)
Saving Throw: Constitution negates

A swarm of insects fills the area. Creatures that begin their turn within the spell’s area or who enter the area for the first time on their turn must make a Constitution saving throw or take 1d4 piercing damage. The pests also ravage any unattended organic material within their radius, such as plant, wood, or fabric.

This spell’s damage increases by 1d4 when you reach 5th level (2d4).