Mulligans
This is my Control Warlock with Prince Valanar. It uses cards like Bloodreaver Gul'dan to out value your opponent. There is lots of tech cards like the Howlfiend–Treachery combo against Exodia Mage and Razakus Priest to take out their combo pieces to leave them with no win condition. There is also Skulking Geist for Jade druid and Evolve shaman and Golakka Crawler for Tempo Rogue and Pirate warrior.