Board Thread:TV Show Discussion/@comment-4708902-20160823230145/@comment-5308269-20160825121120

The mark on Bran's arm isn't going to do anything to help the White Walkers penetrate the Wall. A wight was re-animated after it was brought into Castle Black back in Season 1. So the magic defending the Wall isn't doing its job very well. And the wights wouldn't have chased Bran and Meera through the forest in Blood of My Blood if Bran's marking was part of a strategy to bring down the Wall. If it was, then Benjen wouldn't have needed to save him, and Hodor's sacrifice in The Door would have been for nothing! He's already inherited the Three-eyed Raven's knowledge, so wouldn't anything Bran have not be enough to counteract some scabby little mark on his arm? The Walkers haven't attacked the Wall in six seasons because they've got all the time they could want.