I started off with the usual research at reddit and found...nothing. People just don't want to use Latulla as a commander. On the other hand, when I posted the deck, I got some nice responses and ideas!
Some of these I just need to do some digging around for: Dwarven Hold or Mercadian Bazaar, for example. Others I'm not quite sure how they'd fit into the scheme, like Reforge the Soul or Dictate of the Twin Gods but others, like Chaos Warp, I was eyeing already.
So it's good to know that I've got some overlap with the suggestions.
Game one, I got out Koth and Chandra. Fighting off two planeswalkers really isn't anyone's idea of a good time and I won that game pretty handily. Games two and three, I was mana screwed and this really doesn't teach me anything.
Hell, look at that pic: I don't even know how Joven got out there! Although I will say: Dominus of Fealty in games two and three was pretty boss.
If I experience many games over the next testing phase with mana screw then it's time to fix that. But two games in a match? That happens and I can't hold it up as serious data.
I'm removing Koth for now, and the Rock Slide, for Inferno and Fissure. If I can get some more games in, that might tell me what I can cut for a Dragon Mage. Because, c'mon: Who doesn't want to run Dragon Mage if they can?