D&D 5th Edition Data Explorer

Death Burst
When the mephit dies, it explodes in a burst of dust. Each creature within 5 ft. of it must then succeed on a DC 10 Constitution saving throw or be blinded for 1 minute. A blinded creature can repeat the saving throw on each of its turns, ending the effect on itself on a success.
dc:
dc type:
CON
dc value:
10
success type:
none
Innate Spellcasting
The mephit can innately cast sleep, requiring no material components. Its innate spellcasting ability is Charisma.
usage:
times:
1
type:
per day