PHB: P. 271
Ray of Frost
0-level (Cantrip) Evocation
Casting Time: 1 action
Range/Area: 60 feet
Components: V, S
Duration: Instantaneous
A frigid beam of blue-white light streaks toward a creature within range. Make a ranged spell attack against the target. On a hit, it takes 1*D8 cold damage, and its speed is reduced by 10 feet until the start of your next turn.
At higher levels: The spell’s damage increases by 1*D8 when you reach 5th level (2*D8), 11th level (3*D8), and 17th level (4*D8).
Available for: Artificer, Sorcerer, Wizard