Complex sentence: Magik strikes a deal with Cyttorak, who chooses her to become the new host of the Juggernaut's powers; however, the entity ends up transferring the Juggernaut's powers to Colossus instead.
Split into simpler sentences: Magik strikes a deal with Cyttorak, who chooses her to become the new host of the Juggernaut's powers. However, the entity ends up transferring the Juggernaut's powers to Colossus instead.