The rationale is that if the Gauntlet can be reactivated, then the Magus can be removed from existence. The Magus sends the doppelgängers to Earth to distract the heroes, and the evil version of Mister Fantastic detonates a gamma bomb when the heroes assemble at Four Freedoms Plaza. However, the Invisible Woman contains the blast while Thunder God Thor directs the radiation into space, and a surprise attack by the Magus and the doppelgänger of Thanos has the heroes believing the two characters are now allied.