Mono-Red Sligh wants to race you with burn and Black Vise, so Crimson Acolyte's protection from red is excellent, shutting off Lightning Bolt, Incinerate, and Fireblast against itself while also granting protection from red to another creature for {W}. Cursed Scroll is a liability here because it costs a card and mana to reliably fire while their own burn plan already races you faster, so trim it for the more proactive Crimson Acolyte. Keep the rest of your build intact; Glory is especially strong since it can grant protection from red to your whole team, letting your creatures attack and block through their burn-based removal without fear of Bolt or Incinerate. Your low curve and removal from Swords to Plowshares already line up well against their aggression, so only a light, surgical swap is needed.