If the efreeti dies, its body disintegrates in a flash of fire and puff of smoke, leaving behind only equipment the efreeti was wearing or carrying.
The efreeti's innate spellcasting ability is Charisma (spell save DC 15, +7 to hit with spell attacks). It can innately cast the following spells, requiring no material components:
At will: detect magic
3/day: enlarge/reduce, tongues
1/day each: conjure elemental (fire elemental only), gaseous form, invisibility, major image, plane shift, wall of fire
The efreeti makes two scimitar attacks or uses its Hurl Flame twice.
Melee Weapon Attack: +10 to hit, reach 5 ft., one target. Hit: 13 (2d6 + 6) slashing damage plus 7 (2d6) fire damage.
Ranged Spell Attack: +7 to hit, range 120 ft., one target. Hit: 17 (5d6) fire damage.