Fan Casting Doomsday in The Death Of Superman

Doomsday was the creature created by the Kryptonians which was a failed experiment, Braniac after he managed to destroy Metropolis, would use Doomsday as one of his locked animals, as if it were his zoo of creatures, to free them from their prisons in case of their missions. In the end, he releases some creatures against Superman who kills them, so that in the end Braniac releases his final weapon Doomsday, in the end when Superman and Doomsday die, Braniac plans his next plan.