>>44173200In a very basic sense, there was a time where Pokemon were more primal and untamed, due to exposure to radiation in the Galar region, this radiation allowed them to unlock their fully potential while at the same time distorcing space a bit to make them giant ( similar how in Earth we had giant animals, even giant insects and frogs, because there was more oxygen for them to exist )
Zamian and Zamacenta sealed the source of the power that is the hand-looking pokemon, but the Galar region still emits some of the radiation, so trainers gather them and use them in certain locations to battle, however because the radiation is low and more contained the Pokemon only last for a short time ( 3 turns )
