i really like duels. fun, every run is different. the crazy that happens can be pretty cool.
that said, i feel like the standard of 40% of games your cant loose, 40% you cant win, and 20% is based on skill is more like 46/8/46. the issue is you no longer feel like you are playing, you are just watching.
there is a ton that can be done to reduce the rng from smarter card pots, less treasures total in the pool per hero, ect.
meta can be easily changed up with different hero powers and starting treasures being locked for 1 season, and different cards not being allowed, so the previous suggestion wont make the game stale.
i feel like one treasure in particular, from the swamp, is just a fun sucker. picking it can easily make a match a win for your opponent if they have a way to abuse your 1 health minions. games where both players have it are slogs, and games where you both have it BUT they have another treasure related to minions dying is an insta loss.
lastly, and over all it could just be a me thing, but it feels like no matter what i do or pick, demon hunter has like a 90% WR over me in the 1st round, and 70% in the second.
im probably going to dip my toe into heroic today with some gold and give it a shot, for science and all. but as it sits, i cant stand being a meta slave in a game mode like this just to maybe go infinite, and i cant see myself paying 2 bucks for runs period, maybe a buck i would do, but not with the way the mode is now.