The Soularium + 2x Renounce Darkness, the rest of the deck just fill with warlock cards.

Always Mulligan to find the Renounce.

Your dream start of the game is:

Turn1 - nothing

Turn2 - Hero Power

Turn3 - The Soularium + Renounce Darkness

-> Let the fun begin. I am winning between 70-80% of the games(when you have the renounce early). Concede turn 6-7 if you doesn't draw the Renounce until then. It is just a fun deck and there is no fun when you don't draw renounce.