100 World War Hulks
DC Earth Superheroes, pre-52 versions, all of them!
Scenario: Darkseid decides to finally take out Earth, but without getting his hands dirty. He's looking through a device that shows him alternate realities and finds this World War Hulk creature tearing up the place, so he decides to make an army of clones to send to Earth. He creates 100 clones, each an exact duplicate of WW Hulk. The Hulks all think that everyone on Earth is responsible for their woes, so they want to kill everyone on Earth. Darkseid makes them invulnerable to magic. Magic cannot in any way affect them directly. He also makes it so that the Hulks cannot be BFR'd away from wherever they are fighting. Lastly, Darkseid teleports all the Flashes and Zooms to another planet. He doesnt want them to interfere because even Darkseid thinks they're over-powered, and Darkseid believes in fair play... at least for his enemies. =)
Darkseid drops off all the Hulks in the middle of the U.S, from where they start to spread out to kill as many as possible. The heroes start to learn what's going on 15 minutes later when reports start coming in from places like Metropolis where Hulks started showing up.
-Everyone starts out in-character, which means bloodlusted for the Hulks. Only heroes for the DC team, no villains, who are all presumably using the chaos to go out and be evil, or something. No Flashes or Zooms. No prior prep or knowledge. Only heroes that were permanently based on Earth right before the new-52 stuff happened. Everyone in their standard pre-52 versions, standard gear, etc.
-Magic does not affect the Hulks in any direct way, although it can be used to affect other objects near them... i.e. using magic to lift a heavy object and then drop it on the Hulks is ok.
-Hulks cannot be BFR'd from wherever they are currently fighting. They must be killed or permanently incapacitated. If KO'ed, they simply wake up 5 minutes later to continue the destruction.
-No interference from The Spectre (or similar cosmic entities).
-Other than the heroes, the government is also in the fight. However, the heroes get there first. But if the battle goes on long enough or spreads far enough, the military will factor in.
-no BFR'ing people away from Earth to keep them safe. The battle must happen, on Earth, with everyone on the planet who is already on the planet.
Victory conditions: Heroes win if they can kill or permanently incapacitate all the Hulks before they can kill 50% of the population of Earth.
Who wins, and how?