Billy is a Faun-human hybrid in my au. Their whole connection to nature in Greek mythology (god pan) and the imagery of a sacrificial lamb - he is the 'innocent lamb' that is mixed into the whole elf bussnines by fate, who gave his body up to the wronged elve. Goats are also associated with satanism, whitch links to how the elves and humans where under the devil's influence. In my au the elves in clover where a very reclusive group who catigoricaly refused to partake in the whole 'fae-and-human arranged marriages to strengthen bloodline of human' no matter what the royals tryed (and they would obviously what to do so - all the elves we saw in cannon where loved by mana). Billy tricked the golden dawn into thinking he was completely loyal to clover and no one else, like the devil triked the elves into thinking they'd end up on top in the whole thing.
