Divine Light

The Child of Light has given you their favor, allowing you to use but a small portion of their power. 

At will, as an action, you can empower the radiances of a Holy Light that surrounds you into a blazing glow that sheds bright light in a 15ft radius and dim light out to 20ft. Creatures of your choice within 10 feet of you take 2d4 points of Radiant damage per round that remain within your light. This last for 1 Minute.

You can also uses spell slots to fuel holy strikes. when you hit a creature with a melee weapon attack, you can expend one spell slot to deal radiant damage to the target, in addition to the weapon's damage. The extra damage is 2d6 for a 1st-level spell slot, plus 1d6 for each spell level higher than 1st, to a maximum of 5d6. And as an action you can bless an allies next melee, range, or spell attack to deal the radance damage instead.

Additionally, the unholy shirk from your touch, and burn in your light. If you cast a spell that would normally restore hit points on an undead creature, it instead deals radiant damage to them, equal to the number you would have restored, so long as they are within range.You can also use a reaction to do have this affect an allies healing spell that you can see with 60ft

This feat has the potential to evolve if favor with the Child of Light increases.