Sol oriens sum
In the past, Serra ruled absolute as the Lord most High, his voice ringing loud amongst the halls, courtiers hanging on every word. Now though, with the decline of the fae, his life is ruled by apathy, only looking for ways to escape the boredom of immortality. As the Lord of the high court, Serra accords those below him with no respect, unless earned. The only being who he would address as a superior is the King of the Forest himself.
Excellence: Truth
When given a choice of domain with his peers, Serra chose truth. Whilst the span of 'immortal truth' may seem an irrational focus for a court of faeries, knowing the exact truth of a thing gives you power over it, and makes it far easier to deceive those who do not share your knowledge. Concurrently, through knowing themselves, the day courtiers glamour over mortals is proportionally stronger than those of the other courts.
With this, he is undisputed master of the High Tongue, or true speech. When spoken, the High Tongue twists the world to the speakers whim, bending the rules of nature or compulsing the living into acting as they do not want to. It, like all things, has limits. To act on something, you must know its true and full name, and it can be resisted, by those who have willpower to match the speakers.
In ages past, Serra, like his siblings, watched the world with interest, amused by the antics of the human creatures who scurried amongst the trees and grass, living their so short lives. They provided an entertaining distraction, and very occasionally, one would prove strong enough to be exalted, raised above his brethren, and it was to these that Serra was drawn, these heroes, whose lives always ended so young, at the height of their greatness. It remained so until the cataclysm that split the world, tearing brother from sister and dividing the realm of the fae into the three courts.
Now, in this age of 'reason', where science replaces magic, and scepticism belief, the power of the three courts is waning. The Lord High sits indifferent on his throne as his court splits in two before him, those who believe that the old ways should be venerated, and that they should hold until this time of man passes, and those who believe they should adapt and force themselves upon the world. For Serra himself, the intrigues mean little. Time is a circle, and fate will have its way. This age will pass, and in due course the courts will rise once again.