Just don't tell me Link has to carry that big ass thing on his back. How would it fit in a standard scabbard for one? And would Ghirahim let him rest without whining or threatening to kill him for two?
Whoa! This gives me an idea! What if in a Zelda game, Link was somehow forced to use Demise's sword and Ghirahim was bound to it, so he was forced to help Link? Or better yet, what if Dark Link wielded it and Ghirahim helped him?