Change the clan trait to Amalgamation. It is much more powerful, It is basically combining any magic you absorb then releasing it. just search for it in fanon or smthn
if I will be honest his names stupid if von Lucifer is meant to be his last name for an extra house like Lucifuge I'm ok with angel gremory is just extra to me and his first name especially for a devil is unlikely
kaotiCbeast