Hearthpwn

Your Demons gain a buff to the expense of this card. You end up with an 8 mana 0/0 eventually. 

Thought it would be fun to mess around  with the Curse of Rafaam idea. Make it a bit different. Instead of damage you are getting free cards from your opponent. Sure they get to choose what cards they give but they may not always like the choices.

Note: I realize now that I probably needed to specify that they card can get Warlock specific Demons. I know currently discover does not work that way. Unless they add more Neutral Demon cards this won't work as I intended. Oh well submit anyway! :D

imgr: http://imgur.com/a/0rItG

Art: Wow TCG cards Fel Fireball and Fel Flame art used.

I should have submitted this for Feugen and Stalagg need Friends.

Token:

(Still unsure whether Al'Adin should cost 6 or Magic Teapot should cost 2.)

Flavor: "Reno can rub this teapot. I think."

Pirates need some love.

Which pirates are summoned follows roughly the same logic as Anyfin Can Happen, so long as the pirates died while this card was in hand.

This card has slightly above average stats, but you have the risk turning better cards into this one, and then losing your entire hand.  Could be disastrous if this happens in the early game!  If you have this in the late game, you can have a good supply of moderately large minions to play.  The ideal usage of this card is to position the cards in your hand such that the good cards get played and the bad cards get converted!

It does not convert your entire hand instantly.

Edit: corrected image url, oops

Taking life of creatures while powering up seems like it would work. 

Because Warlocks need Pyroblast too.

"The shadows... will consume you!"

He originally trained to be a Rogue, and never had time to change his name to some thing more evil.

Summoned: "Ahahahaha!"

Effect Triggers: "The shadows... will consume you!"

Attack: "Hehehehehe..."

Death: "Wha... no..."

Here's my submission for this week, the Shadowy Manipulator. The idea behind this card is to make Discard and Affliction (read, Curse of Rafaam) Warlocks more viable through a card that gives your other cards extra value. If discard warlock were ever a thing, this card might become a staple in it. It provides extra value every time you discard cards and clogs your opponent's hand, and as a 6 mana 5/5, is actually a pretty good card to discard once, you've gotten value out of it. In an Affliction Warlock, this could end up being one of your major damage dealers if you changed the deck to include discard effects like Dark Bargain, Soulfire, or Fist of Jaraxxus for massive damage combos. Imagine playing on turn 8 a Dark Bargain into 2 Soulfires, while discarding a Fist of Jaraxxus and adding, say, 5 Cursed!'s into your opponent's hand, for a 20+ face damage combo and a board clear, that could instantly kill your opponent. This deck would also make Tiny Knight of Evil insane, as it could gain up to 4 or 5 buffs in a single combo turn. If you like the idea of this card, please leave me a like.

Upon entering the board: "Spirit lies within the heart. The heart lies within my hands."

Just to clarify, this rogue weapon will be automatically equipped when a friendly pirate dies.

A weak minion with a potentially AWESOME board clear!

You can imagine him being in your hand as looking over the battlefield at the Wrath Gate and the AoE he creates as the plague he spread.

Flavor text:
The legendary book of Medivh, the guardian.
imbued with his knowledge this book can make even the more complex spell with little effort. this book feeds on his onwers mana.

Some shaman love. The opponent has to decide if you not overloading is something they can handle or not.

I've always liked Shaman Deathrattle decks thanks to Ancestral Spirit and Reincarnate.

The token... and the kicker.

Hi all, here's my submission! Good luck to all!

Pacts with the demonic usually come with a lot of pain... and are hard to get out of.

Flavour text: It's pronounced maaaaan. 

Card art is from M:tG's Quill-Slinger Boggart by Warren Mahy

(For clarity: if you don't have any unused mana crystals, it does no damage.)

those who made progress through the ICC will understand the effect :P