Creeping Cold

As you hold your hands with thumbs touching and fingers spread, a wave of frost sweeps outward, spreading over all surfaces within range. Each creature in a 15-foot cone must make a constitution saving throw. A creature takes 1d6 cold damage on a failed save and has disadvantage on the next weapon attack roll it makes before the end of its next turn. 

The area becomes difficult terrain until the end of your next turn.

At Higher Levels. When you cast this spell using a spell slot of 2nd level or higher, the damage increases by 1d6 for each slot level above 1st.