Righteous Heritor

Prerequisite: 4th level, Scion of the Outer Planes (good outer plane) feat

You can channel cosmic forces of good to gain these benefits:

Ability Score Increase. Increase one ability score of your choice by 1, to a maximum of 20.

Soothe Pain. When you or a creature within 30 feet of you takes damage, you can use your reaction to reduce that damage by 1d10 + your proficiency bonus. You can use this benefit a number of times equal to your proficiency bonus, and you regain all expended uses when you finish a long rest.

Source: Sigil and the Outlands