Medic
Starting at 1st level, you can treat your allies by tapping into their inner reserves. As an action you can spend one hit die of a creature within 5 feet to cause that creature to regain a number of hit points equal to the number rolled + your Intelligence modifier. If you have other sources of non-magical healing, you can use this feature to increase the amount of hit points healed, as part of the same action, bonus action or reaction used.