You can use these feature a number of times equal to your proficiency bonus until you need to finish a long rest.
Communal Support
- If you miss with an Attack roll or fail an ability check or a saving throw, you can gain a bonus to the roll equal to the number of allies you can see within 30 feet of you (maximum bonus is equal to twice your proficiency bonus).
Watchful Kin
- As a reaction, you can utter a helpful suggestion or warning whenever a non-hostile creature that it can see within 30 feet of it makes or is the target of an attack roll or contested roll. After the roll has been made, but before a success or fail has been determined, the creature can add or subtract a d4 to the roll provided it can hear and understand you.