Shared Suffering

• Increase your Constitution score by 1, to a maximum of 20.
• As a reaction, you can reduce the damage taken by a creature within 30ft of you in half, and gain temporary hit points equal to your player level plus your constitution modifier. You can channel these temporary hit points as additional damage to the next physical attack you successfully make. If any temporary hit points remain at the end of your turn, you take what remains as damage. This damage can not be reduced in any way. 
  Each time you use this ability you must succeed a DC 10 constitution save or suffer a point of exhaustion. 
  
  

Inspired by Matt Mercer.