Snilloc's Snowball Swarm

Xanathar's Guide to Everything p. 165,

Level
2
School
Evocation
Ritual
No
Casting Time
1 action
Range
90 feet
Components
V, S, M (a piece of ice or a small white rock chip)
Duration
Instantaneous
Classes
Sorcerer, Wizard

Description

A flurry of magic snowballs erupts from a point you choose within range. Each creature in a 5-foot-radius sphere centered on that point must make a Dexterity saving throw. A creature takes 3d6 cold damage on a failed save, or half as much damage on a successful one.

At Higher Levels: When you cast this spell using a spell slot of 3rd level or higher, the damage increases by 1d6 for each slot level above 2nd.