In the basic verdion tou can play Leyline (wich turns off YWill and Dark Petition) and Unmask, although the latter will likely only matter if you're on the play.
How about Leyline of Sanctity in the SB?
Sanctity is a pretty awful card. I don't know how many times I've tried to play it, but it never really does what you need it to do. Storm still has their Chain of Vapor, or other answer to it in their deck. Its a trap to bring it in against anything else since there is no guarantee anyone is playing tormod's crypts or ravenous traps.
Before the site went out there was a comment asking about Vengeful Pharoah. Just remember that it is not optional thus it will destroy your Bridges, and post board your opponent can optionally destroy one of their own creatures to put it on the top of your deck.