[quote=@TheUnknowable]Nightwing also doesn't have equipment either.[/quote]Nightwing has no need for equipment, the only thing that could possibly be added there is the Nightwing costume, but that is just for looks it has no value in combat.

[quote=@TheUnknowable]edit: If you need a reason for Red X to be there, I could make the power source for the Time Portal use Xenothium as fuel.  You could then show up to steal the reserve fuel and accidentally go through the portal.[/quote]I like your idea better than mine, with one minor adjustment, he goes through on purpose.