Snilloc's Snowball Swarm

Level: 2nd
School: Evocation
Casting Time: 1 action
Range: 90 feet
Components: V, S, M (a piece of ice or a small white rock chip)
Duration: Instantaneous

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.

Notes:

• Area of Effect: The spell affects a 5-foot-radius sphere, making it effective against groups of tightly clustered enemies.
• Damage Type: The cold damage can be useful against creatures vulnerable to cold, but less effective against those resistant or immune to it.
• Scalability: The spell scales well with higher-level slots, adding 1d6 damage per level, which can make it a reliable source of area damage throughout the game.

Source: Xanathar's Guide to Everything