Product suggestion
1.The online gaming gains ground over the tabletop. It is a fact. For example it's very difficult for me to play tabletop. But arena give a very bad and disappointing ingame experience. All people say that the matches are imbalanced. The suffler and algorithms are so rigged that many mechanisms who works great in tabletop but don't work online. (For example amass orcs never worked for me in arena).Even rules don't apply sometimes.Gameplay in arena is a fake gameplay and it's not fair , I could say it's robbery for people like me who spend a lot of money.My product suggestion is fix the algorithm to give a more realistic gameplay. Respect the people who pay your game otherwise you will see us fleeing away.
2. My other suggestion is give to players the possibility to trade or craft cards. It's too unfair to gain5-6 times a useless rare or uncommon the same time I can use it to craft something I need.
3.Add find a friend for direct challenge! We can find friends and socializing through the game.At least we can play direct without stupid algorithms and ranks. Go make it wider that feature.
You don't respect your clients and soon or later you got a feedback of that. Don't kill arena ,it's only hope for some of us to play this wonderful game!