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I'm intrigued by this... so if he's not the main villain; are you saying that the Maghrebi is? If yes, then he will be re-introduced in the later part of the story.

Recalling back to the previous parts of the story, the only persons who know about the magic lamp and the Genie is the Maghrebi and Aladdin's mother; so it only makes sense that the Maghrebi is the main villain. And he really wants to have the Magic Lamp from Aladdin.