"It's always me." He said, taking the words from Arthur because it was true.
"In Ealdor -- Will took the blame for me. It's how I stopped the sorceress when we met, Edwin when he tried to kill your father, I got the enchanted sword that killed the Black Knight, stopped Nimueh -- So much more that you haven't even lived through yet.." Merlin offered, figuring maybe it helped his his case. So far Arthur didn't seem upset, so there was one good thing.
"I've had this magic as long as I can remember. When I came to Camelot I didn't intend to use it or go anywhere near you, but I've only ever used it to protect you and others..."