Aphazard's Maleficent Muck

Putrid water seeps from a point on the ground you can see within range. The water covers a 10-foot radius circle on the ground. When a creature other than you enters the area for the first time on a turn or starts its turn there, it must make a Constitution saving throw. On a failed save, a creature takes 5d6 poison damage and falls prone in a heaving fit of disgust.

On each of your turns until the spell ends, you can use an action to move the water to another point within 60 feet of you.

At Higher Levels. When you cast this spell using a spell slot of 5th level or higher, the damage increase for 1d6 for each slot level above 4th.