Smite evil is very cool and very good, but with how long quests are nowadays and how many enemies you have to fight through, it's a little underwhelming to only have three uses of it at any given time. It might be interesting to allow for paladins to recover their smite evil charges like with the Apprentice aspect and the Priest cleric subclass. It'd encourage paladins to use their abilities more freely, and honestly will make the class more engaging and fun to play what with more buttons to press.
This sounds cool
This is a cool idea. If it's possible, could we apply a similar thing to fighter perks as well?
What if it used your Turn Undead charges?