Death Burst. When the mephit dies, it explodes in a cloud of acid. Each creature within 5 feet of the mephit must succeed on a DC 10 Dexterity saving throw or take 4 (1d8) acid damage.
Innate Spellcasting.(1/Day). The mephit can innately cast blindness/deafness, requiring no material components. Its innate spellcasting ability is Charisma.

Claws. Melee Weapon Attack: +2 to hit, reach 5 ft., one creature. Hit: 2 (1d4) slashing damage plus 2 (1d4) acid damage.
Steam Breath (Recharge 6). The mephit exhales a 15- foot cone of corrosive acid. Each creature in that area must succeed on a DC 10 Dexterity saving throw, taking 4 (1d8) acid damage on a failed save, or half as much damage on a successful one.