Survivor
You gain the following benefits.
Hypervigilance. Whenever you roll Initiative, you can reroll the dice:d20|noform|noparens|avg (d20) if the number rolled is 9 or lower. You must use the new roll.
Steel Yourself. When you fail a saving throw to avoid or end the Charmed or Frightened condition, you can take a Reaction to add a bonus to the roll, potentially causing it to succeed. The bonus is equal to your Proficiency Bonus.
Once you take this Reaction, you can’t do so again until you finish a Long Rest.
Sources
RHW