Gift of the Sea Hag

You’ve learned some of the magic possessed by sea hags, granting you the following benefits:

• You gain a swimming speed equal to your walking speed.
• You gain the ability to hold your breath for up to 1 hour.
• As a bonus action, you can force each creature of your choice within 30 feet of you to make a Wisdom saving throw (DC 8 + your proficiency bonus + your Charisma modifier). A target automatically succeeds on the save if it can’t hear or see you. On a failed save, a target becomes frightened of you for 1 minute. A target can repeat the saving throw at the end of each of its turns, with disadvantage if you are within line of sight, ending the effect on itself on a success. You can use this feature a number of times equal to your proficiency bonus, and you regain all expended uses when you finish a long rest.