Water jet.

Your hand is suddenly covered with warm water, that spray at high preasure in a straight line from your hand. Dealing 2d4 bludgeoning damage to all creatures in the line.

Dex save for half damage.

At Higher Levels. When you cast this spell using a spell slot of higher level, the damage increases by 1d4 for each slot level above 1st. To a maximum of 5d4.