This deck is rather straightforward, attack the opponent until they cant get back up. One major critique I have is the inclusion of the Maze cycle. I find these cards to actually slow the game down which is not what your deck wants to be doing. If you cut the
Maze rusher and
Abomination i would suggest adding more Tajic's, Rakdos's and Boros Reckoners. These creatures are extremely powerful as they are incredibly hard to deal with especially with the new rules changes. I personally like the inclusion of
Mark of the Vampire but it will open you up for a 2-for-1 on multiple occasions.
Riot Control as well as
Rise from the Grave can be cut entirely. Adding another Sorin, Warleader's Helix and
Blood Baron of Vizkopa are very good inclusions. All in all your deck is very well thought out in it's approach to winning.