Magi, Volume 19 (Magi #179-188)

Magomett, the leader of Magnoshutatt, learns that the Kou Empire plans to attack while the city is weak from fighting against Leam. In desperation, he uses the Magoi Reactor to create a terrifying blackness in the sky. The very essence of the world is now threatened, and Aladdin must summon his most powerful allies to try to stop it!