This is definitely going into this deck. I will play it this friday on the FNM. Also I will stay in B/W. Only in these colors you have the chance to control your own lifepoints and your opponents lifepoints to not accidentally kill yourself and to stabilize your opponent around 13. The card is the main thread in the deck and every opponent is forced to play around it. Should the opponent go below 10-11 life it becomes a 10 round clock. Your own lifeloss doesn't matter, because you drain your opponent enough.
Damnable Pact functions often as a finish spell in the late game (Your opponent draws 6 cards and loses 6 life ^^). I also removed
Angelic Purge, because it is too slow and 12 Sac Spells are too much.
Ayli, Eternal Pilgrim and
Merciless Resolve is enough. Therefore I added 4
Gideon, Ally of Zendikar who synergises perfect with the ally lifedrain plan and also provides fodder for
Westvale Abbey. I want to win primary with
Triskaidekaphobia, but you always need a Plan B or C or D
I don't see the enchantment in a B/R deck, because B/R don't need such things. You don't want to control the opponents lifepoints in B/R, you just want them go to zero.