Last Stand

Your devotion to your oath stands strong even in your darkest hour, you put your purpose for fighting even above your own safety. You are granted the following benefits:

• Increase your Charisma or Strenght score by 1, to a maximum of 20.
• Once per long rest when you are going to drop to 0 hit points from an attack that you can see, you can use your reaction and a spell slot to damage every creature within 20 feet of you. The damage they take is equal to your smite damage as if cast with the expended spell slot plus your spell attack modifier instead of your weapon damage(the additional 1d8 radiant damage from Improved Divine Smite is also counted for the damage of Last Stand), once you do this you drop to 0 hit points. If the creature who triggered this ability survives the Last Stand it gets to act normally and continue its attack.