Caustic Splatter

You hurl a sphere of volatile, swirling paint that detonates on impact. Each creature in a 10-foot-radius sphere centered on a point within range must make a Dexterity saving throw against your spell DC. On a failed save, a creature takes 3d6 acid damage, and the corrosive paint clings to them, reducing their speed by 10 feet until the end of their next turn. On a successful save, a creature takes half as much damage and is not slowed.