If you had issues telling whether or not Undercity Huckster is Neutral or not, you aren't alone. Blizzard has clarified that it is indeed a Rogue class card.
In addition, they've taken some time to clarify N'Zoth, the Corruptor's mechanics.
According to Forsen, Renounce Darkness selects completely randomly. You do not get to Discover the class or steal your opponent's.
Ancient evils have woken from their ageless slumber to stretch their tentacles and spread mayhem amongst mortals in Hearthstone’s newest expansion: Whispers of the Old Gods! Now it’s time to dig a little deeper, and find out more about the minds behind the tentacles.
This time we’re peering down, down into the ocean’s depths. Join us. Perhaps you may be able to help solve a mystery*.
International Monster of Mystery
Very little is certain about N’Zoth (pronounced nuh-ZAH-th)—most beings on Azeroth don’t even know its name, much less what it looks like. Scraps of obscure lore claim that the Old God has been imprisoned beneath the darkest depths of the ocean for millennia beyond counting. There are also whispers that N’Zoth desires nothing more than to twist what was once noble and pure to its own inscrutable ends. Ultimately, most of what is “known” about this most insidious of beings is mere speculation.
Still, looking at the evidence, it seems like N’Zoth feels a compulsive need to redecorate, and has the aesthetic sensibilities of someone that’s super into skulls, black leather, and knee high platform boots. Emerald Dream? How about Emerald Nightmare. Neltharion the Earth Warder? Nah, let’s go with DEATHWING THE DESTROYER! Prissy Night Elf nobility throwing a hissy fit? BAM! You get a snake body and actual hissing! Yes, it’s rumored that N’Zoth was involved with twisting the Emerald Dream, corrupting one of Azeroth’s most powerful dragons, and mutating the Highborne into the despicable Naga . . . but it’s just getting started.
Tentacle of N’Zoth
N’Zoth probably has more ambition in its littlest tentacle than most beings have in their entire bodies. Since this purple appendage isn’t N’Zoth’s littlest tentacle, it has fully fleshed out plans for total world domination! If having a megalomaniacal tentacle at your service is good, then having one that also explodes into awful corrosive sludge is doubly fine! It may chafe to admit it, but this gross bit of disembodied anatomy may prove to be a timely ally.
Evil is evil, sure, but N’Zoth is a very busy otherworldly horror, so sometimes it’s nice to have someone around to take care of the mundane, everyday wickedness. Take this guy for example. The Undercity Huckster was once an upstanding merchant known for his honesty and integrity. However, after being exposed to a taste of N’Zoth’s tainted influence, he’s now taken to stealing other peoples’ best tricks and selling them back after a price hike.
We hope you enjoyed skirting the edges of N’Zoth’s dark mysteries. There are more Old Gods waiting in the beyond, so prepare yourselve for further unsettling revelations (and card reveals)!
Study up and prepare to welcome your new overlords by devouring previously printed Old Gods lore:
C’Thun • N’Zoth