The Presence and the One-Above-All decide to play an extremely cruel prank upon the Marvel Earth 616, so they create 100 blood-lusted Doomsdays from the Hunter-Prey version of the character. How will Marvel Earth stop them, will Marvel Earth 616 survive? No BFR is allowed. Whenever one Doomsday dies, he STAYS dead, HOWEVER the other Doomsdays will ADAPT and absorb the past experience of the other Doomsdays making them STRONGER. The other Doomsdays will absorb the dead Doomsday's RESISTANCE, STRENGTH, SPEED, DURABILITY, and other stats. If Marvel Earth reaches to the final Doomsday, he would be incredibly strong because he'll have the past adaptations of the past Doomsdays and he'll also absorb their stats (Strength, Durability, Speed, and other stats).
EDIT: I'm taking out reality warpers and characters with cosmic awareness. I want to see how the regular superheroes will handle this.