Mono-Black Midrange leans on hand disruption from Duress and Cabal Therapy plus efficient threats like Hypnotic Specter and Nantuko Shade, so a proactive, resilient creature plan backed by Swords to Plowshares is your best route since Cabal Therapy can't strip lands or already-played permanents. Crimson Acolyte is only a marginal upgrade here since the opponent isn't red, but its 1/1 body for {1}{W} still adds to your aggressive curve better than the situational Cursed Scroll, whose damage ability only fires if you correctly guess a card at random from your hand, against a deck that can remove your artifacts' relevance with Withered Wretch-style graveyard hate having no bearing on it anyway. Keep the rest of your maindeck fully intact, since Wild Mongrel and Basking Rootwalla let you play around their discard by dumping cards into play or exile before Cabal Therapy can take them. Prioritize racing before Nantuko Shade and Mishra's Factory take over as long-term win conditions.