Pre-Crisis Batman has stolen the speedforce and has become it's new avatar and also has won the Green Lantern ring from GuyGardener in a test of wills, and has fused himself with his own battery. He is now seen as a threat to the omniverse.
Batman's motivation: During a standard patrol of Gotham City he is pulled into a singularity where The Oracle (in the picture^), tells batman that only he can save the the Omniverse but to do so, all realms in the omniverse must be completely united to combat the impeding doom. Batman was given notice that he had 2 months of prep, in which he has already devised a way to become avatar of the speedforce, and gain a green lantern ring, and also bridge the universes of All the other Comic Universes, in doing so an incalculable number of lives have been lost.
Rules: You may use current version of All Characters from all Known Comic Universes, you may not use Dead character unless they are living dead, or undead in some way.
All characters except Batman are bloodlusted with Morals off.
DC Speedsters can still access the Speedforce, although Batman is the Avatar the Speedforce; The Speedforce does have a will of it's own that prevents Batman from completely taking away DC Speedsters powers. DC speedster if any are used start the battle with full access of their powers. Batman will have full access to all Speedforce powers.
Only Pre-crisis characters that don't exist in the current New-52 can be used in their last known incarnation.
Win: if Batman is killed.
All artifacts, or universal items from all Comic Universes work in this Battle.
Fight Location: M'Kraan Crystal, Nexus of all Realities.
*Edit: Given that all the Universes have bridged, People like the Presence and TOAA, or any representations of writers or editors of comics can not be used. Think of them as all being in a Room having an epic fist fight to see who can determine the ending of this match.