Acid Bomb

You throw a sickly green orb at a target within range and the orb bursts in a spray of acid. Make a ranged spell attack against the target. On a hit, the target takes 4d4 acid damage and that target makes a constitution saving throw against your spell dc. If the target fails, the target becomes a living acidic bomb until your next turn. If the target would die while it is an acidic bomb it explodes dealing 3d4 acid damage to all creatures within 10ft. All targets within 10 ft must also make a constitution save against your spell dc and if they fail they also become acidic bombs. When these bombs explode they deal one less damage dice. Repeat this until you run out of targets.

At Higher Levels. When you cast this spell using a spell slot of 4th level or higher, the damage (both initial and later) increases by 1d4 for each slot level above 3rd.