I have players fighting a dragon now. Some of them want this ability…
You can shake off the hardest frights in a moment.
Benefit: When you are subject to a Fear effect or the frightened or shaken condition because you failed a saving throw, you can reroll that saving throw. You must use the second result, even if it is lower. If you fail the second saving throw, you cannot use this feat for 24 hours. If you succeed, you may continue to use this feat until you fail a saving throw.