Monification Bomb

The Monfication Bombs were weapons created by Vallok of the Seven Jerk Dragons in order to transform the human population of the Earth into Pokémon and facilitate draconic domination, reverse-engineering the Alakagross golem Numidium to do so. Upon their activation, they'd turn every human within a city's radius into mons, and left a fallout effect that caused anything that entered their zone to become Pokémon as well, even 600 years later within the PMD-B timeline.