Ultra Instinct

Countless hours of training have honed your awareness to a point where you are almost untouchable.

When you are targeted by an attack or an effect that requires a Wisdom or Dexterity saving throw, you can use a reaction to make a Perception check(for the purposes of this spell you are considered proficient in Perception if you already aren't). It the incoming attack roll doesn't beat this Perception check, it misses, and you regain the spell slots expended for the cast; you can also use the Perception check in place of making a roll for the saving throw against the triggering effect, and if you save you regain the spell slots expended for the cast.

You cannot regain spell slots from this spell more than three times after a long rest, or use spell slots regained from this spell for another spell.