Oath Of Ilmater

This paladin has swore they would always put others before themselves, going to any length to relieve others of pain, like Ilmater Himself.

Ilmater's Perseverance

At 3rd level, You can reduce damage dealt to you by 1d6 as a reaction on your turn, You also get access to the Barkskin spell.

Rise From Defeat

Starting at 7th level, when getting knocked to 0 Hp, you can instead get back up and recover 2d10 Hit Points, after using this action you are boosted to the top of the initiative order. You can only use this once per long rest. You also get a boost to Con, and you get the spell Stoneskin.

Pain is just a Perception

Starting at level 15, Pain becomes like any other feeling, just a nerve getting poked the wrong way. You gain resistance to non-magical attacks from slashing, piercing, and bludgeoning. You also get a sizable bonus to Hit Points.

Dwindling Pain

20th level, At the height of power you know constantly regenerate 1d10 Hp every turn, and gain a large Hp boost and Ac Boost.