Purity of Strength

As you developed your body, you developed your mind and willpower. Your years of discipline and dedication have allowed you to use the strength you used to hone your body to protect your mind, body and soul.

As a reaction you can substitute a DEX, INT, WIS or CHA save with a STR save. You can do this a number of times per day equal to your Proficiency bonus. If you use this ability after you've exceeded your uses for the day, roll an athletics check, subtract the roll from your character's maximum hit points.