Changes

Sometime later, Michael constructed a plan which involved allowing [[The 66 Seals]] to break. Participants included Michael, [[Zachariah]] and [[Raphael]]. Michael wanted The 66 Seals broken so that Lucifer could be released from the Cage which would give him an opportunity to destroy him using [[Dean Winchester]] as his Vessel. It is later revealed that the hierarchy of Heaven didn't share this plan with other angels to avoid rebellion; [[Castiel]] was oblivious to this plan at first but he later found out Heaven's true intention and told Dean, but he he was soon found and destroyed by [[Raphael]].

The 66 Seals are eventually break and Lucifer is released. Soon after Lucifer's rising, Michael instructs [[Zachariah]] to get Dean's permission to possess him. Due to Dean's constant and repetitive refusals to angelic-possession, Michael stays in Heaven for a while, but monitors the situation, and he eventually gets to speak with Dean while Dean is experiencing time travel in the year of 1978. Dean eventually assents to Michael and he kills Zachariah using an [[Angel Killing Sword]]. However, Dean and Sam escape and Michael claims [[Adam Milligan]]'s body instead and he meets Lucifer on the chosen field using Adam. Eventually, Sam is able to regain control over his body and temporarily manages Lucifer inside him and throws himself and Lucifer, Adam and Michael into [[Lucifer's Cage]].