There are a lot of players complaining about unusual land draw, that I have experience myself. I have had games where I drew 12 lands in a row (not including the lands in hand from initial draw), and the other player seemed to have had the same issue. Do not dismiss this as a rant or an angry player venting but take it serious enough to hear me out and to do something about this. 

 Of course, you are using a computational process or ADM's (automated decision making) of some sort. These algorithms get out of control and repeat patterns, that's what happens; I won't go further into this. To make this short and to get to the point, I suggest giving us the power to "shuffle" our decks before any game play. Create a button that will randomize our deck before game play and allow this "process" to happen before a battle is loaded. This may also free up start up memory. Also, this would get us off your backs for ignoring a problem you have procrastinated on since a couple of years after Arena's launch.

 Understand, what is "new" (like AI) does not mean it's good. Please take this advice and create a new process, before losing more players to this problem. I've noticed this problem gets worse every year i come back and play, so you DO have an issue with your process. This could easily be a ploy to make people lose so they can spend more or kick them out of something so they can buy more to reenter, which is an old tactic but very transparent. Please, don't let this game get this way, don't turn it into a scam.