Due to their connection to the soul of fire, efreet can will themselves to move. They gain a flying speed equal to their walking speed, however this flying works more as levitation. An Efreet cannot ever be further than 3 feet from a surface, though that surface can be in any direction (eg this ability can be used to climb)

Though an Efreet is nothing put fire in a humanoid form, they have learnt to control themselves so that they do not burn anything that they touch. This allows an Efreet to wear clothes or ride a cart, or even touch another creature. However their physical make up does lead to side effects.

Due to their physicality, all Efreet ate immune to fire damage, however vulnerable to cold damage.

Efreet are classed as Elementals, not Humanoids, and as such are blund by a few effects;

they do not need to eat food nor drink water, but can sustain themselves by consuming fire;
due to their physical make-up Efreet cannot be healed by any normal means, instead if targeted by a spell that deals fire damage they heal the amount of damage rolled;
Efreet do not need to sleep but instead must spend at least 4 hours a day in a trance, while resting in this way Efreet are aware of anything happening within a 30 foot radius.

Due to living alone, or in small groups, learning from scratch how to survive and evade your previous masters, your wisdom score increases by 2 and your constitution score increases by 1. However, due to concentrating your strength into maintaining a humanoid body, your strength score decreases by 2.

At first level you learn the firebolt cantrip, ar 3rd you learn the flaming hands spell, at fifth level you learn the scorching ray spell, you can cast the latter 3 spells once a day at their base level, before needing a long rest to reset this ability. Wisdom is your spellcasting ability for these spells.