The Shattered World
Having been one of the first to realize the growing importance of magic on the battlefield, the Rillian Imperium had been among the first, and the most aggressive, to begin recruiting magical talent. But the Rillians went further than that, cultivating magical talent by identifying candidates at birth and removing them from their families to be placed in cloistered training facilities. In addition, they actively sought any relics and artifacts they could find that could bolster their mages in any way, with the result being vaults of legendary magical wealth.
Because of the unmatched concentration of raw magical power, the Rillian Imperium was the epicenter of The Shattering. The world’s central continent, the home of the Imperium, was all but completely obliterated in that world-shattering explosion; the remains became The Archipelago.