If possible, Batman could weaponize dozens or hundreds of hellspores into one small, but highly potent weapon or he could use the boom tube or some fictional extra-dimensional point-to-point teleportation device to teleport hellspores onto Apocalypse. Batman will need to devise a universally powerful weapon that can destroy Apocalypse, instantly.
@elderskaar: Don't underestimate future Batman and Batman One Million is way smarter than Bruce Wayne. Batman One Million already knows Darkseid's weakness, which Batman from the future can probably weaponize in different ways.
Batman,Zod aint immune to mental attacks and that Batman has a millennium of knowledge over Zod.
This and if Kryptonians are immune to it, then would someone care to show a scan? Batman 1 million is a walking cheat code from the distant future. If Bruce or present-day Batman knows Superman's or Zod's weakness (kryptonite), then so could future Batman. Batman 1 Million may have a futuristic weapon (like the specialized gun he used against Darkseid) with kryptonite that could wipe the floor with Zod.