Marvel Illuminati vs. D.C. Universe
Building on the current New Avengers storyline, The Illuminati come to the conclusion that the universe they have to chose to destroy (else they be destroyed) is D.C. Universe. Because of the crossover, they are duely familiar with the D.C. Universe's existance and study it undetected. They have a good understand the powers they will be up against and are willing to do all that it takes to destroy the entire universe:
Ironman, Beast and Reed create a device that reconstitutes the Phoenix Force. Namor glady accepts the power.
Using the mind gem, Reed acquires the knowledge of Galactus and is transformed into his equal. Terrax is freed from their custody to served him as his herald.
After using the soul gem to maintain control, Strange will take the full Zom formula.
Ironman will don the Godkiller Armor.
Black Panther will consult with the Panther God. With the aid of the reality Gem, Black Panther will become the physical manifestation of the Panther God.
And Black Bolt acquires the power Gem, turning him into living destruction. His screams are reality warping.
Finally, Beast uses the Space Gem and the Time Gem. In a bizzare scenario, he makes the ultimate sacrifice. Bringing over the Dark Beast, as well as a fetus version of himself, he shows Dark Beast footage of how Doomsday was created. He allows Dark Beast to begin the process on the fetus, only he uses the time gem to quickly erect the creatures strongest from. This Beast is now comparable to the Beast referred to in Christianity and needs only to be awakened.
The space Gem is used to bring this team of gods to D.C. Can they completely destroy D.C. universe in 24 hours and save their own?