I played this deck to Champion in Mythgard's 4th beta season. It can play like an aggro deck (win by turn 6 or so) if the combo pieces are assembled early: sablewing zira discarded into boneyard, necromantic on board, sac necromantic with foul harvest, volition, make spectacular plays.
It also has a very strong late game and can play like a control deck if you use born-again together with the disc to get reliable card-draw and pump out big minions to rival your opponent's late-game minions.
The early game is somewhat weak. Wonder drugs, misanthropia and plague maidens can help deal with early boards, but a good aggro deck in the hands of an experienced player will be favored against this deck.