Spell Level: 5
Spell School: Conjuration
Casting Time: 1 Action
Components: V, S, M (a locust)
Range: 300 ft.
Area: 20 ft. Sphere
Duration: Concentration (10 Minute)
Conditions/Effects: Damage (Piercing), Control
Saving Throw: Constitution
Ritual: No
Scaling: Spell Slot Level
Classes: Cleric, Druid, Sorcerer, Fiend Patron
Link: Link to source
Swarming locusts fill a 20-foot-radius Sphere centered on a point you choose within range. The Sphere remains for the duration, and its area is Lightly Obscured and Difficult Terrain.
When the swarm appears, each creature in it makes a Constitution saving throw, taking 4d10 Piercing damage on a failed save or half as much damage on a successful one. A creature also makes this save when it enters the spell’s area for the first time on a turn or ends its turn there. A creature makes this save only once per turn.
Using a Higher-Level Spell Slot. The damage increases by 1d10 for each spell slot level above 5.