User blog comment:Twilight Despair 5/Tablet Theories/@comment-82.34.210.166-20130519041745/@comment-5191648-20130519204859

Demons can only be created by Archangels; specifically, this was only done by Lucifer, with limits as he was trapped when he did as much. The majority of black-eyed and probably red-eyed demons were created with the mechanisms Lucifer put in place rather than Lucy himself.

God alone can create angels of any rank or standing.