Divine Power

Calling upon the divine power of your patron, you imbue yourself with strength and skill in combat.  You gain the benefits of the Extra Attack class feature if you do not already possess it, you can use your spell-casting modifier instead of strength or dexterity on attack and damage rolls with weapons with which you are proficient, and your patron imbues you with an additional 1d4 radiant damage on weapon attacks.

Every Two Spell Levels you can add an additional 1d4 radiant damage to weapon attacks. (At 6th or 7th level this spell adds 2d4 radiant damage, and at 8th or 9th level this spell adds 3d4 radiant damage).