How do you think weather is controlled? Pegasi moving clouds? Unicorns altering the changing of weather in their midst? Maybe, of the skew of different occupations. But how did it start? What caused bright droughts and gray downpours? It may be farther back than you think. For three titans, of the land, of the sea, and of the sky. The former of all three had created the land to begin with. Using its force to drought the land and raise massive continents, while its counterpart created downpours and put roaring oceans into bloom.
Now, normally, this causes contradiction. And where there is contradiction, there is fighting. The two couldn't settle their quarrels and several millenniums ago, engaged in a brutal fight to the death. However, the final titan, the being of the sky, resolved their qualm, sending the beast of the sea to the darkest depths of the deepest ocean, and the beast of the earth into the pit of the largest volcano.
Now, it is the time under Princess Celestia and Luna's dual-rule, and Twilight Sparkle is preparing important events as it is the week-eve of Hearths Warming Eve. However, a sudden surge of spontaneous squalls and droughts begin to violently wrack the area. Rounding up her friends, Twilight approaches the princess to ask for help, but as she tries to rack her mind for an explanation, one of Equestria's largest catastrophes is in development.
A Crossover with da' Pokemons.