Crashing Current

A powerful torrent of water bursts out from you. Each creature in a
15-foot cone must make a Dexterity saving throw. On a failed save,
a creature takes 2d8 bludgeoning damage and is pushed 10 feet away
from you. On a successful save, a creature takes half damage and isn’t
pushed. The water extinguishes unprotected flames in the area.

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.