Selfless preservation

Prerequisite: Con 13

Throughout your adventures you've seen your friends suffer at the hands of creatures cruel and horrid. No more. Even if you have to take the hit for them, they will not fall. Not under your protective gaze.
As an action you can choose a creature within 5 feet of you to protect until they move more then 5 feet from you. Whenever this creature is targeted with a weapon attack, a spell attack, or a effect that requires a saving throw to avoid damage from another creature you can force the attacker to target you instead until the end of your next turn. If this effect would still deal damage to the creature you are protecting they are resistant to this damage. You can only protect one creature at a time. You can use this ability a number of times equal to your proficiency modifier