In testing, the AI could indeed use the combo. The deck (slightly modified) actually beat up most of my farmers.
In the trainer, even though the Rage Elixirs become upped, the deck is still a decent FG, because it can still rage Archangels and Endowed Crusaders. Of course, one could argue that that's WHY it won, because it saved Elixirs for my creatures instead of Raging flying Gavels when it wasn't supposed to...