The priest card doesn't really punish anything, since you just can't possibly play around it.
The dino is a cool arena card, but doesn't do enough in constructed.
The ooze is pretty powerful. RIP red ooze.
That secret sure is interesting, but it's hard to tell how strong it will be.
Rogue finally gets more good removal like they promissed. Even hitting a 3 drop is great tempo.
Living mana is so random and gets punished really hard by Devolve and a few other cards. Nice for meme decks I suppose.
The worst part is that the give you empty mana back.
Mirage Caller seems pretty powerful, depending on which deathrattle cards you play.
Also, Velen wombo combo is wild.
Corrupting is kind of like doomsayer, so it might get played.
The biggest problem is that it doesn't stop them from playing new minion, but you can't since they are just going to trade the minions that are going to die anyway.
Alley cat for paladins. Seems decent. Sadly has no synergy with most of the recent support.
Molten Blade is fun, but most likely not very good. You are better of just playing a good weapon, which warrior has more than enough of.
Finally, the hunter quest. Playing (not summoning btw) 7 1 cost mana minion is not easy, but the new support could fix that.
You are going to need to play a crap lot of them in order to make this work and also draw to not run out of cards to make this work.
The rewards is great, but possibly too slow for hunters.