Rise of Shadows has not been kind to Warlocks. Unfortunately, most of the Warlock cards in the new expansion leave a lot to be desired. However, Plot Twist may be one of the greatest new discoveries for Control Warlock players.
Plot Twist can change your whole game for just two mana. If you're holding a bad hand with no removal, you can instantly find an answer with the help of this spell.
Of course, other Warlock archetypes may not find this card very enticing, as it is specifically oriented for control.