Not at my computer, but I would think use a branch node to determine whether to block or not, and then connect “get mana” and “float is less than or equal to float” and set the other number as 0. Then connect that into the branch condition. Still pretty new at it myself, so that may not work perfectly. You should do the 3rd person blueprint tutorial if you haven’t. It helps you understand enough to start figuring stuff out on your own.