The thing that jumps at me most about this deck is that you only have 7 Heroes and no Chariot. You can't afford to wait around for your protection stuff (Z-Temple and Cov w/ Phinehas) since your defense is so light, but if you got hit with an early Plot or Wrath and lost a couple Heroes, I don't think you're going to recover in time before they walk through your small defense.
I also think you're better off with Twelve Finger Giant instead of Sabbath Breaker. Since you have nothing to play on Sabbath Breaker, it would be better to ensure that your Christian Martyr is good for a block with 12FG.