Just finished the first duel, and the first encounter. Ended the former on over 60 life with the white deck- the crap 'shuffling' by the game meant I kept pulling out so many plains cards, with few creatures. The blue player was also stuck in a stalemate, with a couple of kraken hatchlings, and some other 2/1 creatures. All the while, I had a couple of Soul Wardens adding one life continuously, and eventually use of some 2/1 flying creatures finished him off, as he had no flying/reach creatures.
Encounter was straightforward too- have these replaced challenges?
Also, how come the player had five of one card in his deck?