Yeah I quit arena for this expansion after I got a 12 win run with warlock (preceded by some mediocre to bad runs). It felt like every game was decided mostly by rng with me having very little unfluence on the game's outcome. In my opinion arena peaked during boomsday (I only started actively playing arena since the taverns of time event) and kept being pretty good until now.
I've picked Warlock 5 times after the expansion. My win counts were 12-10-9-12 and I have a 9-1 Arena run I have yet to finish. Something definitely needs to be done about class balance or the bucket system. After 8 wins, it's all Warlock.
Hunter is currently #1 in Arena based on Win Rate, largely because it Hard Counters Warlock.
The issue isn't Warlock but rather the power level of decks. They obviously stealth nerfed Rogue when Rogue was crazy strong at the start of the expansion. They significantly reduced the offering rates of top cards like Miscreant.
Arena is best when decks are weak and you are forced to make hard decisions. Having people LOL their way to 12 wins because they drafted 4x Abyssal Enforcer, 4x Miscreant, 4x Marked Shot, 4x Conjuror's Calling, etc is really dumb.
Lol infinite 4.5 win arena player!!!! I think you need to explain that you play one run a day and it's supplemented by your daily so you don't gain or lose gold overall. You need above 6 wins to be considered infinite if you have high variance in your arena runs or closer to 7 wins if you don't