Heh, I just beat a preconstructed deck with my 60 cards wimpy 4 colour deck... and a lot of luck I suppose.
Btw, I'm thinking of joining a Ravnica league, since that way I can get more cards and play a league at the same time, without having to resort to precon decks. The cards in Coldsnap are way yoo onesided in my view, since a lot concerns snow covered stuff... and I'd like my cards to combo in later sets too.