LSV's decklist dredge list is fine. I'm just not quite so sure how him playing already existing dredge technology changes the format. Both Sullivan, and I, among dredge pilots, have already been playing these cards. Whether they see play I think would be more on their merit as actual good cards than just LSV playing them. As Brass points out, its not like people are going to start playing Sleight of Hand.
Ive said it before, but its my belief that Containment Priest is no better than a tier 3 hate piece against a well prepared pilot. That is, Id place it alongside cards like Pithing Needle and Wasteland. There are just too many answers for Priest that are easily playable from the yard: Cabal Pit / Loam / Portal in this scenario, but cards like Crippling Fatigue and Vengeful Pharaoh are also very strong against it.