Ice Storm
4th-Level Evocation Spell (Druid, Sorcerer, Wizard)
Casting Time: Action
Range: 300 feet
Components: V, S, M (a mitten)
Duration: Instantaneous
Hail falls in a 20-foot-radius, 40-foot-high A Cylinder is an area of effect that extends in straight lines from a point of origin located at the center of the circular top or bottom of the Cylinder. The effect that creates a Cylinder specifies the radius of the Cylinder's base and the Cylinder's height.
A Cylinder's point of origin is included in the area of effect.
centered on a point within range. Each creature in the A Cylinder is an area of effect that extends in straight lines from a point of origin located at the center of the circular top or bottom of the Cylinder. The effect that creates a Cylinder specifies the radius of the Cylinder's base and the Cylinder's height.
A Cylinder's point of origin is included in the area of effect.
makes a Dexterity saving throw. A creature takes 2d10 Bludgeoning damage and 4d6 Cold damage on a failed save or half as much damage on a successful one.
Hailstones turn ground in the A Cylinder is an area of effect that extends in straight lines from a point of origin located at the center of the circular top or bottom of the Cylinder. The effect that creates a Cylinder specifies the radius of the Cylinder's base and the Cylinder's height.
A Cylinder's point of origin is included in the area of effect.
into If a space is Difficult Terrain, every foot of movement in that space costs 1 extra foot. For example, moving 5 feet through Difficult Terrain costs 10 feet of movement. Difficult Terrain isn't cumulative; either a space is Difficult Terrain or it isn't.
A space is Difficult Terrain if the space contains any of the following or something similar:
A creature that isn't Tiny or your ally
Furniture that is sized for creatures of your size or larger
Heavy snow, ice, rubble, or undergrowth
... [more]
until the end of your next turn.
At Higher Levels: The Bludgeoning damage increases by 1d10 for each spell slot level above 4.
Source: Player's Handbook, p. 287