Dark Arts Events are something that will hurt you and your teammates in some way (like losing health) or add a different challenge. A new one is always revealed at the beginning of your turn and it can really mess with your plans. Villains are also there to cause you trouble. Depending on the Game, there will be a different number of Villains shown. Each Villain has their own ability that will be triggered by certain game Events. These Villains can keep hurting you each turn until you defeat them and a new Villain is revealed to take their place.