Indomitable is a Fighter feature gained at level 9 in the 2024 SRD. If you fail a saving throw, you can reroll it with a bonus equal to your Fighter level.
If you fail a saving throw, you can reroll it with a bonus equal to your Fighter level. You must use the new roll, and you can't use this feature again until you finish a Long Rest.
You can use this feature twice before a Long Rest starting at level 13 and three times before a Long Rest starting at level 17.