I'm good with most of the changes.
BGH going to 5 is kinda huge. Seeing 1 let alone 2 will yet to be seen.
Almost every class has better removal than BGH now. BGH still limited by 7+ attack whereas class cards can normally kill any minion for the same cost (or cheaper).
Molten change isn't as bad as I expected. Seems reasonable.
Force seemed to be the logical choice for nerfing combo and is pretty much what I had expected. Not sure if it'll ever see play, but in a token deck it's got a shot.
I'm disappointed in the owl nerf. Still seems too good and won't change much. But since so many aggro cards got hit, maybe it won't be as prevalent. Owl is still only best in an aggro deck.
Leper wasn't on my radar but makes sense.
I don't really agree with the Lore change. Sure he is in every Druid deck, but classes are allowed strong cards. Warrior always have Axe/Execute/Shield Slam yet those cards aren't touched at all. Druid card draw already sucks a lot so this hurts and doesn't make sense to me.
We all knew Juggler would get hit. Probably still sees some play still.
Arcane Golem was unexpected but on my "doubtful" list. Glad it was changed!
Master of Disguise was hinted at by others. Sucks but hopefully means some awesome future cards.
Hunter's Mark is whatever, I don't see it being necessary tbh.
Blade Flurry hit a bit too hard. Cost should stay 2 or 3 max.
Keeper I thought was allowed to be strong due to class card but okay... Opens up the 4 slot a bit more.
My predictions were kind of close:
My picks for cards to nerf:
Savage Roar (maybe) - Either this card or Force of Nature, but not both. I think this card survives... meaning Token Druid still ok.
Force of Nature (likely) - Probably loses charge, since charge is always problematic, to compensate maybe minions stay on board, but would need to be cheaper or stronger minions.
Big Game Hunter (likely) - I have no good suggestions, but this guy has to be dealt with. Maybe he does 8 damage to minions with 7+ attack instead, so still works on almost all the same shit except Divine Shields and health buffs would stop him. Also Deathwing lives.
Knife Juggler (maybe) - Such an OP 2-drop. Should be looked at.
Alexstrasza (doubtful) - Enables so many combo decks, would be nice if they nerf it, but I don't see it happening. (Added it since it was mentioned above and seemed like a decent idea to me).
Arcane Golem (doubtful) - Just a very annoying addition to the aggro decks. There's plenty of charge minions to target, but this one would be most likely to see a change imo. I still doubt it happens. There's still Wolfrider/Bluegill/Leeroy as neutral charge minions, but Arcane Golem is the best bang for the buck. You can see it in face hunter, aggro druid, aggro shaman and Warlock (with PO+Faceless).
Abusive Sergeant (doubtful) - Such a versatile 1 drop but it only sees play in aggro and some warlock. Probably doesn't get nerfed, but I wouldnt be surprised if it sees a small change.