Ruby hack: Pokemon Cataclysm

The world has had two realms since its creation; the Voyde, lead by Unrequed, and the Glyte, lead by Veetagron. Both are opposing forces that rival each other since the beginning of time. In their battles, the Glyte was the most successful, gaining space in this world, to a point where the Voyde has been practically extinguished. In the Glyte territory, humans established towns and civilization, and became what it is today. However, half a million years after the complete disappearance of the Voyde, Tom, your long-time friend, had traveled to Detuns in order to sight-see some rare Pokemon. What he didn't know, however, was that the amulet he carried was the last remaining fragment of the Voyde Gem, which when completed, is the key to unleashing the full power of Unrequed and spelling doom to the Glyte realm. Sensing the fragment, Unrequed orders his minions after it. Feeling this, the leading Pokemon of the Glyte needed to act. That's where a boy/girl, from the Sinnoh region of Nekoli, gets summoned to Detuns. As a human subject aiding Veetagron in the great cataclysmic battle.