Steam Mephit

Small Elemental, Neutral Evil

AC: 10

Initiative: +0 (10)

HP: 17 (5d6)

Speed: 30 ft., fly 30 ft.

STR
5 (-3)
DEX
11 (+0)
CON
10 (+0)
INT
11 (+0)
WIS
10 (+0)
CHA
12 (+1)

Skills: Stealth +2

Immunities: fire; poison

Condition Immunities: exhaustion; poisoned

Senses: Darkvision 60 ft., Passive Perception 10

Languages: Primordial (Aquan, Ignan)

CR: 1/4 (XP 50; PB +2)

Habitat: Planar, Elemental

Blurred Form.

Attack rolls against the mephit are made with Disadvantage unless the mephit has the Incapacitated condition.

Death Burst.

The mephit explodes when it dies. Dexterity Saving Throw: DC 10, each creature in a 5-foot Emanation originating from the mephit. Failure: 5 (2d4) Fire damage. Success: Half damage.

Actions

Claw.

Melee Attack Roll: +2, reach 5 ft. Hit: 2 (1d4) Slashing damage plus 2 (1d4) Fire damage.

Steam Breath (Recharge 6).

Constitution Saving Throw: DC 10, each creature in a 15-foot Cone. Failure: 5 (2d4) Fire damage, and the target's Speed decreases by 10 feet until the end of the mephit's next turn. Success: Half damage only. Failure or Success: Being underwater doesn't grant Resistance to this Fire damage.

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Steam Mephit

Source: Monster Manual (2025), p. 208 - Licenses and attribution