Blessing of the Dawnfather

You have been blessed by Pelor, The Dawn-Father himself. and have been given the power to vanquish your foes with his holy flame by becoming the bane of evil. once you've activated your blessing you can't use it again for a week.

As a bonus action, you can invoke your blessing and gain its benefits for 10 minutes.

While the blessing is active you are under the Bless spell for the duration of the blessing. and any evil creature that attacks you takes 4d6 radiant damage and is knocked prone. any divine smite used while the blessing gains an extra 1d8. 

While blessing is active fiends and undead have disadvantage on your paladin spells.