>>82104017In the finale of Omniverse, Ben and his partner Rook was sent before the universe was created by the big bang by the villain, Maltruant, Ben transformed into Feedback who has the ability to absorb energy in order to stop the big bang before it could destroy them, when he couldn't every alien he's ever gotten up to this point jumped in to help hold the big bang together.
It's the greatest scene to ever happen in the entire run I think.