Caustic Sludge

Throw a handful of foul, black matter toward a target or location within range. On contact, it bursts in a spray of acidic black tar that coats an area (5 ft. sphere). Make a ranged spell attack against the target(s). On a direct hit, the target takes 3d4 acid damage immediately and 2d4 acid damage at the end of its next turn. On a miss or an AOE hit, the sludge splashes the target for half as much of the initial damage and no damage at the end of its next turn. Additionally, any targets hit by the spell must make a DEX saving throw or are Restrained until their next turn.

At Higher Levels. When you cast this spell using a spell slot of 2nd level or higher, the damage (both initial and later) increases by 1d4 for each slot level above 1st.