"Aurelion Sol once graced the vast emptiness of the cosmos with celestial wonders of his own devising."- So far so good!
"Now he is forced to wield his **awesome** power at the behest of a space-fairing empire that tricked him into servitude." - This is where I find a problem. Aurelion Sol is a legendary creature forging stars for God's sake. And his power is called awesome. Seriously awesome??? You call your mother awesome for buying you a chocolate, not a badass dragon who creates whole universes. I think Riot should bring more aspect on his legendarity and power before he was imprisoned and make a feeling he's indeed **THE Star Forger**.