Blinding Strike

You gain the ability to temporarily infuse your weapon strike with blistering divine energy.

Prerequisite: Cleric level 9, Light Domain.

Benefit: When you hit a creature with a weapon attack, you can expend one cleric spell slot to deal radiant damage, in addition to the weapon's damage. The extra damage is 2d8 for a 1st-level spell slot, plus 1d8 for each spell level higher than 1st, up to to a maximum of 5d8. The damage increases by 1d8 if the creature is an undead or a fiend. Furthermore, the creature must make a Constitution saving throw. The saving throw DC is equal equal to 8 + your proficiency bonus + your Wisdom modifier. A failed save means the creature is blinded until the end of your next turn.

Once you use this feature, you cannot use it again until you finish a short or long rest.