I just did Headless Horseman on my level 69 Paladin after the hotfix. It seems that, without using Consecrate, I start the fight at about 4.5k mana and end at about 4.2k mana. With Consecrate, I start at 4.5k and end up around 1.7k. This is using Hammer of Wrath whenever possible, by the way. I don't have the Crusader Strike 20% less mana cost glyph, and I obviously don't have Divine Plea. Does anyone know if, at 80, spamming Consecrate will be worth it?