You all guys: if there is such thing as computer cheating with the 50% thingy, it is probably because of the advantage the player has (given you always start first, and there is no drawback to it). On PvP, there is drawback for playing first, and I believe there is no cheating involved in PvP.
Suggestion: as the new expansion adds far more difficult gameplay (you have to be super perceptive in comparison to older cards), I would recommend printing those 'on play' and 'on death' abilities in different color on cards. Point?
I would love to not have problem with mouse accuracy and blinking float-overs. What configuration makes that happen? Bad resolution (I have tried several), or bad browser (chrome for me)? What the flip is wrong with this game?