Water Lash

You create a whip-like stream of water that lashes out at your command toward a creature in range. Make a melee spell attack against the target. On a hit, the target takes 1d10 force damage, and its Speed is reduced by 10 feet until the start of your next turn.

Cantrip Upgrade. The damage increases by 1d10 when you reach levels 5 (2d10), 11 (3d10), and 17 (4d10).