What is this? This is in Elegon's room, in Mogu'shan Vaults, which comes up when you start the fight (ie the door closing). I only noticed it the other day, though I can't recall why I am standing here looking at it if the fight had already started...
... though I do recall what I was thinking when I saw it.
Oh, that's so pretty! How did I not notice that before? If Ancient was here she would tell me off for not taking a picture of it earlier to show her... Must get good pic....