If anyone cares how the deck performed, it was pretty decent. It's pretty high variance, some games I had enough ramp to play koz early and then keep the gas going, but some games I don't and I ended up durdling for a few turns and sometimes not recovering. It was fun to always have big beaters, but the lack of ability to respond is somewhat limiting, and getting obliterated by random cards (from the ashes, fracturing gust, and then hellkite tyrant made an appearance) was pretty disheartening, although at least kozilek was more resilient than Karn.
Anyway, onward toward Rakdos next week. Then Gruul, Simic, Naya, Abzan, Jeskai, and Mardu.