So, I was watching the Ultramarines movie, earlier, and I have to say I thought it was soso, overall. With all of the fanboys for Blood Angels and Space Wolves, and everyone treating the Ultramarines like they were the NY Yankees, I appreciated that the movie focused, for the most part, on the "Vanilla Marines".
That being said, my question/comment is derived from one of the couple characters who WEREN'T Ultramarines; Chaplain Carnak, of the Iron Fists. In one of my favorite scenes, we see what's left of our Ultramarines squad, now accompanied by Chaplain Carnak and another Iron Fists SM, Nidon (or maybe Brother Sandal, if you are up on your Dragon Age references), and they are about to be overrun by Black Legion CSMs. Everyone is firing at the baddies, except for the Chaplain, and some of our guys are wondering if this is a sign that he is in league with the BL. After a tense moment, and the BL CSMs closing into range, he bellows "burn heretics!", holds forth the Crozius Arcanum, and from it emanates a cone of blue light. Where it hits, CSMs die, just straight out biff it. Later, when it might help if he did it again, it still needs charging time.
So my quandary, what was that? I've never seen the Crozius make a ranged-ish attack, nor have I seen Chaplains get powers, like other Faith-bearing souls might. Usually, I just see them as mostly melee wargods, granted a guaranteed power weapon, and carrying a guaranteed field generator into battle. How might someone go about making this seeming flame cone of holy faith fry the enemy? Is there something cool like it in one of the books, already, and I missed it?