One more story of this type (I guess it's not necessary to create another thread):
Opponent did not respond after playing an early purple dragon (using 3 novas in that round alone...) and getting it lightning bolted by me. Then each subsequent turn (for 4 turns I think), he played another 3 novas and a purple dragon (with only 2 cards in hand. He must have stacked them exactly on top of each other...). Afterwards, the AI finally took over, but it was too late for me, even with one of the dragons mysteriously vanishing.