The 20th level Bard ability, Superior Inspiration isn't very good. Let's add another one to it. How about this?
Jack of All Saves
Starting at 20th level, you can add half your proficiency bonus, rounded down, to any saving throw you make that doesn’t already include your proficiency bonus.
Jack of All Saves
Starting at 20th level, you can add half your proficiency bonus, rounded down, to any saving throw you make that doesn’t already include your proficiency bonus.