The Marvel heroes teamed up to fight Doomsday. - Iron Man: I have advanced weapons and defense systems. I'm not afraid of Doomsday. - Spider-Man: I wrapped Doomsday with spider silk. - Thor: I took the hammer and hit Doomsday to weaken it. - Captain America: I picked up my shield to block Doomsday's attack. - Hulk: I pushed Doomsday away with my great power. - Wolverine: I attacked Doomsday with my wolf claws and injured him. - Black Widow: I snuck into Doomsday to collect weapons and materials. Although this joke might be a little cold, the ability and unity of Marvel heroes could defeat any enemy. So, if the Marvel heroes formed a team to fight Doomsday, they would definitely win!