Simalar to Summoning Stone, but it's cheaper and 1 time use. This will certainly see experimentation, and guaranteed play in some kind of RNG casino deck in both standard & wild. (Maybe standard Trick Totem Casino Shaman, or WILD Casino mage)

The 2nd best rager. (only behind Faceless Rager) Also this is the first rager we got since Rise of Shadows! So that's neat. I feel like this should have been fine at 3 mana, but i guess you can't ask for too many good things i guess.

Amazing with Guardian Animals, and good in hunter & druid. Mainly in the control variants of the decks. Also we generally don't see cleave cards often, so finally seeing some good cleaves is really nice! I'm looking forward to experimenting with this card already!

Intersting card. Good with [car]Felosophy and Disciplinarian Gandling. But the best thing i.m.o. about this card is that it messes up Galakrond, the Wretcheds summoning pool! This card will see experimentation but i'm not sure if this powercreeped Wisp will see play after that. 

Good minion for libram paladin, but also good in dragon priest. this is actually Twilight Guardian with +1 atk. This will certainly see play. 

Good for big decks like Strength in Numbers druid, recruit warrior and maybe Duel! paladin? Also this cards existance is just good, because you can pull this from random discovers and from Dragonqueen Alexstrasza. 

This is just OP AF if you ask me. Why didn't they make [Hearthstone Card (Robes of protection[Hearthstone Card (s text "your other minions can't be targetted by spells or hero powers"? This will see play in nearly every aggro deck. Be smart and save copies of this card everyone, cuz it's gonna go on the nerf-list. Pretty sure no-one wants to risk losing out on free dust.  

Might see play in highlander decks, but i'm sure that pre-nerf [cardAzure Drake would be too weak these days. The thing Steward of Scrolls got going for it is the fact it can discover a spell instead of drawing a card. But i feel like that's still not good enough. Also it's a elemental, and standard right now has almost no elemental synergy cards that this can profit from.

In wild: This feels too weak, even in elemental decks with a lot of synergy. There are just way better elementals out there.

This card is INSANE. our poor classy mech Jeeves finally got powercreeped. Also Jeeves to this day still sees play, so that's why i'm guessing Voracious Reader will also see play in a lot of decks. Here are a few examples of decks this will probably fit in perfectly:

Murloc Shaman, Murloc Paladin, Egg/enrage warrior, Burn mage, and spell-damage shaman? The best deck for Voracious Reader is probably burn mage, because they often run out of spells or don't draw their combo pieces. (Which is why Burn mage & secret mage decks in wild use Aluneth.)

Also in WILD: THIS IS EVEN COSTED! This will certainly fit in decks that blow outta resources FAST, like Even Hunter and Even Shaman. (Just to name a few) This will certainly replace Jeeves in most decks, but not all. The exceptions are: Mech decks (they want to mechnetise onto Jeeves) and of course: Fatigue decks.

So this is amazing in Hunter, because of the inspire "After you use your hero power" cards like Phase Stalker. Actually Tour Guide on turn 1 let's you turn 2 HP + Phase Stalker into a free secret. This seems strong to me. Also in mage it's a Elven Archer, in warlock a slightly worse Kobold Librarian, and in paladin it's basicly Lost in the Jungle. This card has a LOT of potential!

IN WILD: NOOOOOO! this card let's quest shaman double Shudderwocks battlecry! This is honestly extremely scary and will steal games. 

Amazing DH card, and good in classes with bad card draw. Will see plenty of play.

In wild: I'm afraid of this card. This will see play in nearly every EVEN deck thanks to Genn Greymanes hero power cost reduction.

I'm skeptical about this card. 6 mana 12/12 seems really good, but i feel like spell-damage/burn decks might not want such a late game minion. They probably want their opponents to have 0 hp by then. But hey 12/12 on turn 6 shouldn't be underestimated. My guess is that it will certainly see experimentation, but it will fall off quick.

Probably yeh, lol.

Seems bad in standard to me.

BUT IN WILD, it's NUTS. This is one of THE cards Fire Plume's Heart warrior players wanted. It's just a shame it's even costed, so it can't be used in ODD Fire Plume's Heart warrior. (Which is a good thing i.m.o.)

Really good for warrior, as warrior has a LOT of rush cards. This means that despite the discover nerf, warriors still have a big chance to discover a class rush card. Will see mainly play in control warrior, because they LOVE clearing the board. Will perhaps see play in some kind of recruit warrior resurgence, as they don't want to put "whiff" their Dimensional Rippers and other "recruit" cards. 

Auto-include in any warrior deck. Also cleave is VERY STRONG. there is a reason we don't see that many cleave cards printed. Also this kinda effect is what control warrior really needed.

Like kripp said, this is really good to get Lord Jaraxxus a turn earlier, and [Hearthstone Card (Lord Jarraxus) Not Found] back in the days was always really strong on turn 8, but that said it was quite a long time ago. So we will see if Lord Jaraxxus will be any good these days, or if it really fell of HARD.

Also Demonic Studies can dicover a lot of demons. And because of the discover nerfs some time ago, it means that both class/neutral cards are as likely to show up. And neutral has some REALLY bad demons like Desk Imp (bad with the discount), Magtheridon (bad.), Supreme Abyssal (no silence = bad card) and Sathrovarr (only good in combo decks). Now that i'm looking at it, i hardly see any GOOD demons in the standard pool. This card is really hard to use.

Really good card for the late game! It basicly counters things like The Forest's Aid and Cycle of Hatred. Solid card, but i feel like shaman will only run 1 copy of this in control shaman. Also this will certainly see play in a highlander control shaman list.

REALLY GOOD for spell damage shaman. On-demand spell damage is strong, and it also naturally curves into Molten Blast. Seems like a solid burn shaman card to me.

Really strong with spell damage. If you have enough spell damage, this can fill the entire board. Strong in some kind of aggro spell-damage list. Also don't underestimate these tokens, because the last thing you want is to play against a board of tokens buffed by Bloodlust. Solid card.