I liked the 4e DnD ideas of Will saves being Charisma or Wisdom. Let’s see if we can’t bring that back…
Force of Will
Your mind is a fortress unto its own. Gain the following benefits:
- Wisdom saving throws can be made using your Charisma modifier, and Charisma saving throws can be made using your Wisdom modifier.
- If you add your proficiency bonus to both Charisma and Wisdom saving throws, add 1 and 1/2 (rounded down) your proficiency bonus instead.