Its my first (serious) contribution so please upvote and let me know what you think!
Its not a competetive deck, but it is fun and rewarding to pull it off. And it's a low cost deck. So if you have the 'thun, you can have a go with it.
You will off course need to go trough your cards as fast as possible. Most cards will do just that, and then there are some nice synergies that will help draw cards fast. So save Acolyte of Pain and Defile for the right moment.
The same counts for Cult Master. It would be best to have it an extra turn, if you are lucky it happens and mostly with Voidwalker. At the end of your game you draw fast using Cult Master with Mortal Coil, Stonetusk Boar and eventually Lesser Amethyst Spellstone and Dark Pact.
Cards like Lightwarden and Voodoo Doctor and other healing cards will give you that extra punch. Its a threat the opponent needs to clear off the board, which will give you some extra time. Play this early on and the opponent thinks you run one of those anoying Heallock decks we all know too well.
Add ons / replacements
Some considarations... 2x Galvanizer this enables you to pull off the combo one turn earlier. But it has no other use than that. Or 2x Acolyte of Pain. But you don't want to overdraw, and its a bit painfull to draw it at the end of a game.
Please let me know what you think and what changes to make.