Complex sentence: Sorcerer Supreme, Doctor Strange creates the Strangers out of aetheric energy in a hastily put together plan to prevent the demon sorceress Salomé from taking his power, life and the title of Sorcerer Supreme.
Split into simpler sentences: Sorcerer Supreme, Doctor Strange creates the Strangers out of aetheric energy. He does this as the beginning of a hastily put together plan to prevent the demon sorceress Salomé from taking his power, life and the title of Sorcerer Supreme.