JLA vs Imperial Guard
Here is the scenario: Metron learns that Emperor Vulcan plans on using the M'kraan crystal to restore the Shi'ar to their former glory by conquering the Marvel universe as well as all other universes. He convinces the JLA that the only way to prevent this is with a preemptive strike against the empire. The team is transported to the Marvel universe they make their way to the Throne world where they are quickly confronted by the Imperial Guard. Battle quickly ensues. Who wins and how?