Martyr

You were chosen, by some higher influence. You are destined to either die for a cause, or at least greatly suffer for it. You may lament this, or take it in stride. But either way, pain is inevitable, and you have gained the ability to endure it.

When a creature you can see hits a target that is within 5 feet of you with an attack, you can use your reaction to reduce the damage the target takes by 1d10 + your proficiency bonus (to a minimum of 1 damage). You subsequentially take half the rolled damage.