In-verse
The amount of magian essence present in the world has increased tenfold over the past decade. Men slaughtered each other to kingdom come as their leaders struggled to grab as much of this power as possible. Entire Nations, continents, monarchies reshaped as a result of this sudden spike in magian energy. It is true what they say, that power corrupts. For wherever there is power, there will always be those who abuse it. Such is the nature of humans. Whomever possesses the means to greed for more will do exactly that, at any cost. Waging war was no longer a significant decision, these bloody battles were as commonplace as children playfighting.
Yet in the midst of all this chaos, a phenomenon like nothing else the world has ever seen before arose. The emergence of a class of mages that were more Godlike than man... the birth of Legacies. Every scale of power that existed was shattered, and the exponential growth of power up to this point was completely forgotten. But this would not be the last miracle humanity will witness... no... something more... awesome... or maybe... sinister was in store.