The Weather Trio consists of Kyogre, Groudon, and Rayquaza in Pokémon Aura. Thousands of years ago, during the primal age, the world was overflowing with natural energy. Primal Groudon and Primal Kyogre fought over that energy in endless clashes. In the face of their great power, people could do nothing. But Rayquaza intervened, and its power overwhelmed that of the two Primal Pokémon, and peace returned to the world. A thousand years later, a meteoroid hit the earth, causing cracks in the ground that unleashed natural energy, causing Groudon and Kyogre to rebattle each other. Humans had a collective memory of how Rayquaza saved their race long ago, and that wish combined with the power of the Meteorite allowed Rayquaza to Mega Evolve for the first time and calm the two from quarreling.