Cruel Patron

Then Promising Future finishes resolving, and the players finish adding their pending items to the chain in the same order they were put there, ignoring Energy costs but still paying Power costs. They must pay mandatory additional costs (like the cost of Cruel Patron), and may choose to pay optional additional costs (like Accelerate).

I play Cruel Patron, and I have a 1 [M] Recruit alone at a battlefield I control. I choose to kill my Recruit to pay the additional cost of Cruel Patron. Although this causes a cleanup, because there is an item on the chain (Cruel Patron) I don't lose control of the battlefield. I can choose to play Cruel Patron to that same battlefield with no issue. I acti

357.1. In total, pay the combined Energy cost (if any) and Power cost (if any). 357.1.a. During this step, the card's controller can use activated abilities with the Reaction tag that Add resources to add Energy and Power to pay the card's costs. See rule 165. Rune Pools and rule 429. Add for more information. 357.2. In addition, pay any nonstandard Cost sum