Corrosive Goo

The ground in a 30-foot radius centered on a point within range sputters and becomes flooded with a bright yellow ooze. The area becomes difficult terrain for the duration. When a creature moves into or within the area, the creature gets covered in Corrosive Goo, if they aren't already. Creatures covered in the Corrosive Goo are halted and slowed, halving their movement speed and taking 2d4 acid damage at the beginning of each of their turns. The creature can successfully remove the Corrosive Goo with a DC 16 strength save.