Grimlore's Grimoire
6-level Evocation
You touch the ground within 5 feet of you, sending a wave of
ice shooting forward. The ice forms a line outward from your
position that can be up to 40 feet long, up to 10 feet wide, and
up to 20 feet tall. Each creature within the area must make a
Dexterity saving throw. On a failed save, a creature takes 2d8
cold damage and 2d8 bludgeoning damage. Additionally, its
movement speed becomes 0 until the end of its next turn. On
a successful save, a creature takes half as much damage and
it does not suffer a movement speed penalty
At higher levels: When you cast this spell using a spell
slot of 7th level or higher, the cold damage or the bludgeoning
damage (your choice) increases by 1d8 for each slot level
above 6th.