Hearthpwn

You do realize that Lady Katrana Prestor is actually Onyxia, right? Also, why would she turn stuff into cobras, if anything, she would turn them into WHELPS. It's also really incoherent to have 2 of the same card as different forms and a 4/12 for a class card with a massive battlecry is just waaaay too powerful. Argue Grommash all you want, he's useless in a topdeck situation.

Cowering Shout is nice and all, but 4 mana is excessive for a buff you're giving your oponent. If you have enough of a board advantage that you can spend 4 mana to destroy enemy taunts and still kill your oponent in the same turn, they lost to the board and not to the card.

Crazed Berserker. I like the way you say "he can even become a 9/3 !!!!!!1111" there's such a card and it's called Bloodsail Raider. What you're offering is a 4 mana cost minion with the potential to have 1 more health if used with a clean Fiery War Axe, for TWO MORE MANA.

Canissa the Shadow: No. It does too much. Again, uncounterable immediate effect.

Gladiator Spellblade: First off, it's a SPELLblade, the name is flawed. If you have played WoW, SPELLblades are worn by SPELLcasters. Also, I'd rather just use Owl or Spellbreaker or even Sap for crying out loud. Why are you so worried about Taunts anyway. Can you please show me on the doll where the Druid touched you?

Earthquake: It's a weaker Mass Dispel. MD is weak. Don't make an useless card.

Strenght of Earth: 0% chance the infinite taunts thing would exist.

Arcanist: 6 Mana? That's outrageous. 7 at least. You're getting a free, buffed hero power the turn you play her.

Oh jeez, look this was moved! Just to tell you guys, this was made before GvG!

So the power level might be way more crazy then expected, like with the Silver Hand General. I originally thought it would only work with the hero power, but since Muster for Battle is a thing he is completely broken!

First off: The Poison effect is great. I really like it, and if Blizzard ever implemented it, I'd be ecstatic.
Now for the cards, I'll comment on the ones the peaked my interest :)

Silver Hand General: I like cards that interact with the Hero Power. This one does it well. Even with the Quartermaster and Muster for Battle being present, much needs to align for the craziness to occur.
Rebuke: Love it, if it had a cantrip effect - as in, draw a card.
Wild Mushroom: This is amazing. Slow, but efficient. Great for control and ramp. Maybe: If your enemy control no minions, deal 1 damage to enemy character.
Wanderer of the Forest: The versatility of Druid is its strength and its weakness - master of none, good at all. This is more of that, and a good version of it.
Serpent Sting: This needs to have a cost. 2 or 3 mana. Good card otherwise. As before, the Poison effect is really nice.
Arcanist Avenlena: Can't believe I'm saying this, but I like this.
Focused Will: Dig it. Very Priest.
Chain Heal: Needs to cost 4. Good card, though.
Shuriken of Negation: I like it. A neutered Doomhammer for Rogue.
Crazed Berserker: Cool weapon interaction. Minion needs to have more than 2 health as baseline. He's much too fragile at 4 mana, otherwise.

Perhaps because Blizz is balancing cards and creating the adventure battles? Often TCG's have sets months in advance and then wait to make sure all is balanced.

Lunar Alchemist would be so good, especially with Auchenai. Destroy a 4 Health-minion without random effect of the bomb lobber with much lower mana cost. Doesn't help against stealthed auctioneer, but this does not get used anyway. And 2/4 is okay too. One of the most balanced card in this deck.

Canissa The Shadow:

 Problems with this card. Your minions are frozen now as well so they can't attack the enemy. Going to need to drop this before a small charge minion if you want to do more than just attack with your hero's weapon.

Your minions are now poisoned so they are going to take be -2 / -2 before your next turn so you probably just wiped your board and since they were frozen on your turn, they remain frozen on your next turn. That would make them -4 / -4 before you can use them again.

Canissa will be able to attack on your next turn only if she survives.

I think the wording will need to be changed on this card. I like the idea of giving enemy minions stealth so you can attack past taunt. She would be quite powerful if you had her only give all minions stealth and gave her charge. I would drop her to a 4/6 though if you were going to make a change like that.

Isnt Soul Swap pretty much a worse Vol'jin?

Oops sorry this is old.