QUESTION ONE: You can still shoot him while you are singing, but you have to do it DRAMATICALLY and in song form.
QUESTION TWO: It's an illusion which he uses to match the current situation and his (or whomever's singing's) mood. Think of it like he's making the area around him a musical.
QUESTION THREE: It's Supernatural, but any sort of healing ability will immediately negate it.
QUESTION FOUR: It's called being extremely blithe.
I'm glad that everyone seems to enjoy my Epic, and I think I might join Salem if it gets approved.
(Also, has anyone made an Epic named Brony, )