He later escapes with the support of an army of angels sent to rescue him - acquiring in the beginning remained powering as penance for his steps to prevent a duo of Leviathans that were being seeking to attack Dean and Benny as they still left Purgatory - but the other angels not only erase his memory that they had been liable for his escape, but also erase his memory of their subsequent 'check-ins' to discuss the Winchesters' actions, with.