Blizzard

A wave of icy cold force sweeps out from you. Each creature in a 15-foot cube originating from you must make a Constitution saving throw. On a failed save, a creature takes 2d8 ice damage and is pushed 10 feet away from you. On a successful save, the creature takes half as much damage and isn't pushed away

All enemies within the effect radius take a 5 ft. reduction to their speed until the start of your next turn., unsecured objects that are completely within the area of effect are automatically pushed 10 feet away from you by the spell's effect and all fires within the cone become extinguished 

At Higher Levels. When you cast this spell using a spell slot of 2nd level or higher, the damage increases by 1d8 for each slot level above 1st.