Armor Class 11
Hit Points 22 (5d6 + 5)
Speed 30 ft., fly 30 ft.
Skills Stealth +3
Damage Immunities fire, poison
Condition Immunities poisoned
Senses darkvision 60 ft., passive Perception 10
Languages Ignan, Terran
Challenge 1/2
Death Burst. When the mephit dies, it explodes in a burst of lava. Each creature within 5 feet of it must make a DC 11 Dexterity saving throw, taking 7 (2d6) fire damage on a failed save, or half as much damage on a successful one.
False Appearance. While the mephit remains motionless, it is indistinguishable from an ordinary mound of magma.
Claws. Melee Weapon Attack: +3 to hit, reach 5 ft., one creature. Hit: 3 (1d4 + 1) slashing damage plus 2 (1d4) fire damage.
Fire Breath (Recharge 5–6). The mephit exhales a 15-foot cone of fire. Each creature in that area must make a DC 11 Dexterity saving throw, taking 7 (2d6) fire damage on a failed save, or half as much damage on a successful one.
Monster Manual (2014), p. 216