And I guess you do need a trainer to mega evolve now to think of it. Anyway, the dragons need some organization in their lives and since there is no royal of the dragons yet, I'll set up two dragon characters if that is alright. I'm also going to have a few minor Aurum characters mentioned such as Felicity, tell me if I need an form for them.
Dragons
Name: Deorum
Pokemon (species): Garchomp
Level: 90 (I feel you have to be at least this to rule over dragons)
Gender: Male
Personality: Deorum is very strategic and intelligent on the battlefield and on the home front, he is very stubborn and won't give in even to his last breath.
Appearance: Black body with yellow front, wears armor made from dragon teeth.
Friends: None, although aims for dragon domination
Enemies: Anybody who stands in his way
Bio: Deorum is the monarch of the Dragons. He gained the throne after murdering his family, and pinned it on the rising power of the fairies. A fearsome warrior and tactician, he rules the dragonic beings with an iron fist.
Faction: Dragon
Other relevant stuff: Beep
Name: Archia
Pokemon (species): Flygon
Level: 83
Gender: Female
Personality: Compassionate towards others, peaceful except for on the battlefield, great military strategist, intelligent
Appearance: regular flygon
Friends: her two legions, all Pokémon
Enemies: those who wish harm on others
Bio: Archia is one of the few generals in the draconian army, and has been tasked to protect the dragonic lands. In charge of the first and second Imperial Legions, she has direct control over 100,000 troops. The catch is that she refuses to attack without provocation, and even when provoked she fights only to preserve draconian lands.
Faction: Dragon
Other relevant stuff: Beep