Physician

You have honed your medical expertise through practice, study, or guidance, allowing you to provide exceptional care to others.

When you roll a Wisdom (Medicine) check to treat a creature and succeed, you can allow that creature to spend and roll one of its Hit Dice to regain a number of hit points equal to the roll. A creature can only benefit from this feature once per short rest.

You learn and can cast the Diagnosis spell once per long rest without expending a spell slot. Additionally, you can cast it using any spell slots you have available of the appropriate level. Choose Intelligence, Wisdom, or Charisma as your spellcasting ability for this spell when you take this feat.