Board Thread:Speculation House/@comment-14312167-20140111211806/@comment-24.241.217.195-20140527202705

If the "aura feedback" theory is correct, then he may become blind/deaf from too much light/sound, because his senses are overcharged. The mask may be to keep out excess light, providing only enough to see by. These effects may also be permanent if he uses this too often, hence Blake's reservations about him using it.