Holy Shield Bash

You pray to your god(s) and your body is imbued with radiant holy energy. You then dash forward in a straight line for up to 20 feet and bash one creature with your shield, dealing 1d6 blunt damage plus your Strength modifier, and pushing them back 5 feet. The impact automatically releases the holy energy within you in an explosion that deals 1d6 radiant damage plus your Charisma modifier to all enemies within a 15 feet radius at 1st level, plus 1d4 every 5 levels. Creatures within the radiant explosion radius that succeed a Constitution saving throw take half the total radiant damage.

You must use a shield to execute this feat.