Extension to beard theory
There was post about Bard being just a beard in clothes. http://boards.na.leagueoflegends.com/en/c/story-art/Mq8MLPvi-the-truth-behind-bard
I wanted to make a naked picture of Bard and while drawing I realised something. Even though his "body" is a beard, the Bard himself is not. He is just controling it.
You could call him a parasite.
So Bard is actually a Horn.