User blog comment:Merkarion/Original Maous and their Legacy/@comment-37165251-20181215171702/@comment-37165251-20181216221541

Like I said I don´t think it has to do with Light...but we know that Vali Demonic Energy is silver-colored with a black Radiance.

As for the other Clan-Traits, for me it is mostly because of interrest. I love to create Fanfiction Ideas sorrounding Devils, so knowing what each can do is helpfull (sadly I mostly have not much time to fully write some...maybe next year)

Like you said Lucifer was the leader...but "only" Maou Class. Maybe he could learn other Family Traits ...like "Worthless" or the "Power of Destruction"...not the Phenex Immortality but their Fire affinity...that would make him incredebly more dangerous.