Dragon shout.... you would go back to the wall corresponding too the shout you wanted and wield an iron dagger on the wall and maybe select something the screen would go dark and when it came back you would have a really crude tattoo/scar in your body of the dragon word and when you use that shout the words would glow and the shout would be stronger this idea is really BETA... im sure when im trying to fall asleep tonight ill come up with a great idea and ill have to get up and write it down