This is a black discard deck that also attempts to exert a high level of control on the opponent. You want to be using cards like Ravenous Rats and Mind Rot to reduce the cards they have in hand and thus the number of options they have. You can pair that with Shrieking Affliction to maintain pressure and keep their life going down. If any large drops do hit the board you can destroy them economically with Victim of Night and Ultimate Price .
By 
ChiefBell