An element of bag control that keeps the player emptying and refilling their bag as often as possible. Churn strategies can be based on removing dice from your bag cycle (by fielding them or keeping them from the Used Pile when you refill your bag) or by drawing more than the regular 4 dice per turn (generally done by using a global, character ability, or action die) and rolling them in either the Roll and Reroll Step or the Main Step.