Mistress of Fate both helps to complete the Warlock Quest faster and can disrupt combo decks by reshuffling their hand.

'You'd be forgiven for not knowing Azeroth has two moons. The Child can be a bit camera-shy.'

Explosive Sheep

“Now you see me... now you see more of me!”

Quoted Text

Webspinner for beast or Shimmerfly for spell

"You aren't dreaming--Ysera has been awakened!"

"The streets of Gadgetzan where the Dentists use fake licenses and get paid in fake money"

" don't want to wait, for my trapper keeper to be over!"

Flavor text: "Demonizer, demonizer, oh, demonizer, oh, you're a demonizer, baby."

Imprisoned Scrap Imp just happens to curve into this. Crazy, that.

Demonfire

The idea came to me when thinking about my favorite expansion when it came to lore (whispers of the old gods) and also to [Hearthstone Card (Jan'alai, the Dragonhawk) Not Found] and the end result was a card that supports heal paladin, a failed archetype that I was also a really big fan of. 

For those that might have forgotten, this is Ragnaros, Lightlord:

Flame Leviathan

My thinking behind this card is that Flame Leviathan is a decent anti-aggro card, it just sucks when you get it when you don't need it, or if you're against a deck with big minions you just have a dead 7 mana 7/7. With Architechnician you can control whether you have one in your deck, and how many you have, so if you are against aggro you can shuffle a few Leviathans into your deck that will wipe the board but if you don't need them you don't have a 7 mana 7/7 clogging up your hand. Also I used the term everyone instead of 'all characters' because the latter made the text really small but all characters would be a better description.

Some help for "Feral" Druids; you can even curve into the Bite. Hopefully the flavor isn't too complicated.

This card opens us a possibility for a spell-less shaman deck.  Without spells, Doomhammer is used more for board control than face.

Deadly Poison

Toxin Alchemist will add extra Deadly Poisons to your hand, which can then be saved and uses as Combo activators, or all-in-one to create one giant weapon.

Someone has to train those Brewmasters, and he's the man for the job. This card will shuffle in Youthful Brewmaster and Ancient Brewmaster at random. 

Dr. Boom was very clear to Nezzie that she couldn't shoot the Boombots. So she made more cannons to shot at Dr. Boom instead.

I couldn't submit the Fel Cannon into the submission, I'll guess i just have to highlight it here.

For reference: Healing Rain, Lightning Storm, Volcano. It used to cast Blizzard instead of Volcano, but people didn't liked the idea of a Shaman card casting a Mage spell, so i changed it.

"What do you mean with "the weather is random? it is not, the forecast said there will be a Healing rain on turn 5, a Lightning Storm on turn 7, and it i'll cause a Volcano to erupt on turn 10. And as we know, wether forecasts never misses, right?...right?"

Medivh came up with some more entertainment for his guests! The Lion Tamer and her pet Savannah Highmane are a proud bunch though, so they won't show up until their audience has gathered. 

Upgrade! is such a fun card to me. Having a weapon create Upgrade! made since so you had a target. Sure the weapon could have just gained +1/+1 but I think the flavor and utility of generating Upgrade! is important. You can hold onto it and buff a Woecleaver or Livewire Lance later. Easy enough to generate armor in Warrior. Could make some fun weapon combos. Something I feel warrior lacks. A weapon based deck, with cards like Deadly Arsenal, would be interesting.

GL:HF

I know the card is REALLY powerful, but that is what the "Pure" Paladin is lacking.

While normal Sunwalker is a defensive cards, this Legendary is a counterpart being more reactive.

You can have only one of these in your deck so it is a little more powerful than Lightforged Crusader or Lightforged Zealot

Hagatha's corruption has even touched mechanical beings such as the once humble Target Dummy (chose the Witchwood watermark cos of the background of the art). Once the Dummy has been rewired (killed), it returns to its pacified state.

What if...
Arch-Villain Rafaam convinced Archmage Antonidas to join the League of evil?
And what if the Archmage was secretely still trying to help the defenders of Dalaran by giving them Pyroblasts?
Well, it would probably look a little bit like this.