There is a variety in the decks there, and while I'm not much of a deckbuilder, it shows in the results. (I'm biased here because I haven't seen any of kdz's decks, but still)
Being a master means doing what is required. Stage 1 was required, and the upped cards were levied directly on that. Don't worry too much about dethroning kdz, IMO at least you won well and convincingly.
And if nothing else, the 'Master of Life' Title would look better on your avatar