"On the day of the Wizarding City Paz's destruction, Amina got stuck inside a lamp while trying to turn back time."
More details : every mages got killed (apparently they did smth but Amina doesn't know anything), only her brother Jibril survived to find her, to give her his lamp and to make her leave (he then got killed as well). Then, while trying to turn back time, she realized that she couldn't and got stuck in the lamp. 80y later (not 300) she got out thanks to a kid. Then, after she utilized all of her magic, she went back to the lamp. She realized she can only uses her magic thrice.
Some time later, she met the commander of the Paz army, Lord Jakal. He summoned her but doesn't realize that. She learns that there is a prophecy about the genie of the lamp, who is supposed to emerge one day to save the wolrd (wtf haha). Anyway, that's when she learns that 300y have passed.
Jakal has a step-brother, Nadir. He is the one who sent Jakal to find the lamp to make their father, the Viceroy (= leader), opens his eyes again (he is really sick). Jakal's mother is the wife, princess Mustia but Nadir's mother is a nameless Rapa.
Amina of the Lamp