<P> Meanwhile, Batman is also heading to the place where Clark's mother has been taken hostage, and finally managed to save him from Luthor's henchmen . Luthor, realizing that his plan has failed, executes his backup plan, resulting in creation of his own creature, codenamed "Doomsday", encoded by Zod's body and his own DNA . </P> <P> Eventually, Luthor's creature has gone into rampage, and Batman is going back to the abandoned building to get the kryptonite spear . Diana arrives unexpectedly, revealing her metahuman nature, and joins forces with Batman and Superman to fight the creature . After a lengthy battle, the creature also outmatched Diana, Superman and Batman during the fight . Realizing the creature is vulnerable to kryptonite, Diana and Batman distract it long enough until Superman retrieve the spear . </P> <P> Finally, Superman is able to impale the creature with the spear, killing it . However, in its last moments, the creature kills a weakened Superman by one of its bone protrusions, killing him . Luthor is arrested by the SWAT police for caused of his crimes and also involved with Superman's death . </P> <P> A memorial is held for Superman in Metropolis . Clark is also declared dead, with various friends and family members including Diana Prince and Bruce attending his funeral in Smallville . Martha gives an envelope to Lois, which contains an engagement ring from Clark . After the funeral, Bruce expresses his regrets to Diana about how he overestimated Superman . Bruce reveals to her that he plans to form a team of metahumans, starting with those from Luthor's files, to help protect the world in Superman's absence . Batman, who warns Luthor that he will always watching him, and Luthor's gloat that Superman's death has become a trigger to a powerful alien threat . After they leave, the dirt atop Clark's coffin levitates . </P>

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