Davros claimed that the planet Antalin had been terraformed to resemble Skaro and was destroyed in its place. A subterfuge to destroy Daleks aligned to Davros; both on Skaro (Antalin) and those that remained hidden within Dalek ranks on Skaro (original). Despite finding evidence of threat to Skaro via evidence found on 22nd century earth of Davros' mission to 1960s Earth and seeing the event via time-tracking equipment, the Dalek Prime allowed the destruction of Skaro to destroy Daleks allied to Davros. Dalek Prime also claimed that the Dalek/Movellan war (and indeed most of Dalek history before the destruction of "Skaro")
Davros complicated when the Sixth Doctor uses the device to swap bodies with Davros in an attempt to subvert the Daleks' plans from the inside. At the end, Davros and the Doctor are returned to their original bodies with the aid of the Doctor's new companion Flip Jackson, and Davros is left with an army of Daleks who have had their minds wiped. These Daleks presumably become the "Imperial Daleks", first seen in "Remembrance of the Daleks". In "The Juggernauts", Davros is on the run from the original Daleks. He hatches a plan to add human tissue to robotic Mechanoids, using