Frost Nova

5th-level evocation

Casting Time: 1 action

Range: Self (20-foot radius)

Components: V, S, M (white dragon scales worth 450 gp)

Duration: instantaneous

Classes: sorcerer, wizard

You invoke the arctic cold to freeze your foes. All creatures other than yourself within 20 feet of you must succeed on a Dexterity saving throw or take 8d8 cold damage and suffer disadvantage on Dexterity saving throws until the start of your next turn. On a successful save, a target takes half damage and does not suffer disadvantage on Dexterity saves.

At Higher Levels. When you cast this spell using a spell slot of 6th level or higher, the damage of this spell increases by 1d8 for each slot level above 5th.