I think pretty much everyone had the same set of decks today. Even in the two rounds I was in, it was all pretty much the same.
monofire (1-0)
UG burninator (1-1, lost in mirror)
scarabs (0-1, lost by 1 turn vs monofire due to losing cointoss)
FFQ bond (didn't get to use this one; pretty skeptical as to whether it would've worked, but nobody else listed it)
I couldn't think of anything else when building that would be even close to competitive. I didn't really like the cardset, as it lent itself far too much to fire decks this week.