[Legacy/Vintage][B/R Discard Deck][Critique after a long hiatus from Magic.]

http://tappedout.net/mtg-decks/the-price-of-discovery/

I haven't played Magic since I was a sophomore in Highschool (about 6 years ago, I mean I did a little M12 on XBL when it came out but it was nothing special.) I'm looking to get back fully in the swing of it and I had some success with it in Cockatrice but I would like to know if there is anything else I can do to beef it up or make it more efficient.