Ray of Frost
Casting Time
Range
Target
One creature
Components:
Duration:
Instantaneous
An icy beam shoots from your outstretched fingers. Make a ranged spell attack . On a hit, you deal 1d8 cold damage and reduce the target’s Speed by 10 feet until the start of your next turn.
This spell’s damage increases by 1d8 when you reach 5th level (2d8), 11th level (3d8), and 17th level (4d8).
Rare Versions
Gabal’s Frigid Ray of Frost. A target that takes 20 or more damage from this spell reduces its Speed to 0 and becomes rattled until the beginning of your next turn as the cold penetrates to its very core.
Source