OK, will give the rapid-fire phagenalysis so plebs can cry foul in 2 months:
Druid: Moonkin is hilariously bad; Mounted Raptor is the next hungry dragon - kids gonna kid and claim it's good, but the stat spread sucks (if it was a 2/3 it'd be an inconsistent harvest golem); Raven Idol is snooresville - pick it in arena when the other two picks are jank; unplayable in serious constructed.
Hunter: Hat is 10slow. Desert Camel is potentially cool: summon a leper gnome against a deck with no 1 drops is really sweet; sucks if they have chow; Dart trap is jank.
Mage: Animated armor might be ok in some freeze shit? Same with torch. Both are so goddamn slow/janky though. Don't know what you'd remove for them. The 6/3 is really bad, lol.
Paladin: Anyfin Can Happen is trash (murloc only deck has to win before turn 10, cannot have empty card in hand making divine favor worse; Keeper is interesting... You upgrade a Guy (tm) and he gets powered up, also doubles as huge target removal - don't know if he fits into a deck though, 4 drop slot super contested; Sacred Trial seems bad, decks that flood the board will usually have some kind of shitty 1 drop they can throw out - it's also easy to play around, but I could be proven wrong.
Priest: Excavated Evil is another boardwipe of course. If Control Priest were to be a thing, this is ok. Don't know if it's better than holy nova tbqh.; Entomb is really bad except in Control Priest vs Control Warrior lol; Museum Curator missed the Deathrattle train like 10 months ago.
Rogue: Tomb Pillager is simply not good enough stats wise for constructed, decent arena card; Unearthed Raptor is sweet, but has no constructed deck yet - top tier arena card; Pit snake is whatever, pretty trash
Shaman: Everyfin is Awesome seems garbage unless Shaman Murloc aggro becomes a thing (unlikely); Rumbling Elemental is cool, but effect is conditional for underwhelming stats, pass; Tunnel Trogg is similar to Everyfin - if The Overload Deck (tm) becomes a thing, he gets played. If it doesn't, he doesn't. I'd wager it doesn't anytime soon.
Warlock: lmao, remember when I argued with you fucking morons that Gormokk is garbage and you all told me I'm stupid then 1 month later nobody runs that shit? yeah, Reliquary is that on steroids, pass; Cursed is garbage; Dark Peddler is fairly eh in general, kind of bad overall.
Warrior: Cursed Blade... whew, now that's a card. I actually like the design. Ultimately, I think that Face Hunter is OK with their minions effectively getting 2 attacks in before dying, so I don't think it's constructed playable. It's cool though.; Obsidian Destroyer, nice arena card, but he's no Dr. Boom for Constructed; Fierce Monkey - now this is GOOD. Top tier arena card AT COMMON FOR WARRIOR! WOOO! Also good enough for constructed if you have room.
Neutral:
Arch Thief - really, really slow and mana intensive. too slow probably. (I said that about nefarian though and he got used, so idk)
RENO JACKSON - pretty fucking amazing for control mirrors. a great example of why hearthstone needs sideboarding. too situational for real laddering.
Elise - lol, go on a quest to lose the game!
Bran - Could be used in some battlecry deck, cool design, probably won't get played though.
Sir finley - like Ugly said he is a well designed card, but drafting a new hero power is pretty terribly inconsistent. Pass.
Djinni - cool design, but the angel sisters have shown that "Voltron"/"Build a Bear" strategies are pretty poor in hearthstone
Naga Sea Witch - Eh... pretty bad tbqh. THE DREAM is you play her on turn 5, then on turn 6 you can cast a 7+ drop. Really not as impressive as some christmas wonderlanders will presume.
Summoning Stone - doesn't work in a game like HS where you can target creatures at will with your creatures
Eerie Statue - hey, now this is cool! Could be used in control decks.
Ancient Shade - also very strong, might be used in yolo decks that statistically won't draw the card. more RNG bullshit tho.
Devilsaur - complete garbage lmao
wobbling runts - strong effect, too slow and attack is really weak for that late in the game, pass
Sentinel - very strong effect, easy to play around though. pass for constructed
Gorillabot - pass. situational, high variance, etc
Tomb Spider - high variance. grinder strategy conflicts with hunter too much. pass.
Jewled Scarab - a apprentice engineer that smooths your curve, but may draw you jank - has shit impact on board, same weakness as aforementioned card. pass.
Huge Toad - great card for arena (high tier 2 drop), pass in constructed
Murloc Wisp - ok, more fuel for the retardo murloc fire. probably too unimpactful for any non divine-favor paladin murloc deck though.
OVERALL LIST OF THE GOOD:
Fierce Monkey (but may not have a slot tbh lol)
Desert Camel (might get no play due to chow, we'll see)
OVERALL LIST OF THE GETS PLAYED IF THE DECK/META IS RIGHT (so most won't get played, a couple might):
Arch Thief (sooo slow)
Cursed Blade
Unearthed Raptor
Keeper
Everyfin is Awesome
Tunnel Trogg
Bran
Animated armor
torch
in b4 "BUH BUH YOU DIDNT LIKE PATRON" - yeah, nobody else did either, and nothing here is even close to the potential power level of that card, shut the fuck up.
Final concensus:
This should actually make arena better (Warriors got good cards!! Paladins got shit cards!!) but just how much of an effect has yet to be seen.
Constructed wise, this is by far the worst adventure yet holy shit lol. Legitimately might not buy a single wing, we'll see.