Efreeti

If the efreeti dies outside the Elemental Plane of Fire, its body dissolves into dirt, and it gains a new body in 1d4 days, reviving with all its Hit Points somewhere on the Plane of Fire.

The efreeti has Advantage on saving throws against spells and other magical effects.

The efreeti has a 30 percent chance of knowing the Wish spell. If it knows it, it can cast it only on behalf of a non-genie creature who communicates a wish in a way the efreeti can understand. If it casts the spell for the creature, it suffers none of the spell's stress. Once it has cast it three times, it can't do so again for 365 days.

The efreeti makes three attacks, using Heated Blade or Hurl Flame in any combination.

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: +8 to hit, range 120 ft., one target. Hit: 24 (7d6) fire damage.

The efreeti casts one of the following spells, requiring no Material components and using Charisma as the spellcasting ability (spell save DC 16): At Will: Detect Magic, Elementalism 1/Day Each: Gaseous Form, Invisibility, Major Image, Plane Shift, Tongues, Wall of Fire (level 7 version)