I don't like messing with the Pokemon lore too much, that's why I kinda wanted the legendaries to not be that important, like Lugia and Ho-Oh.
I did have this idea: that long ago there was this region where two tribes of people lived. Once they lived in harmony but that all changed. One tribe mastered science and technology and wanted to make their world based on that. The other tribe mastered sorcery and magic and wanted to make their world based on that.
A war broke out, the tribe of science used their machines to create a powerful Pokemon of Science. The other tribe used their spells to make a Pokemon of Magic. Because these Pokemon were made for war they had no hearts. They could not be controlled and nearly destroyed everyone. The Pokemon were invincible without hearts and could not be captured by even the strongest Pokemon Trainers. Finally before the region was entirely destroyed the last members of the Tribe of Science and the Tribe of Magic worked together to put the beasts to sleep. And to this day they rest beneath the region.
I did have this idea: that long ago there was this region where two tribes of people lived. Once they lived in harmony but that all changed. One tribe mastered science and technology and wanted to make their world based on that. The other tribe mastered sorcery and magic and wanted to make their world based on that.
A war broke out, the tribe of science used their machines to create a powerful Pokemon of Science. The other tribe used their spells to make a Pokemon of Magic. Because these Pokemon were made for war they had no hearts. They could not be controlled and nearly destroyed everyone. The Pokemon were invincible without hearts and could not be captured by even the strongest Pokemon Trainers. Finally before the region was entirely destroyed the last members of the Tribe of Science and the Tribe of Magic worked together to put the beasts to sleep. And to this day they rest beneath the region.