Extra Smiting (Smite Good)( Defenders of the Faith: A Guidebook to Clerics and Paladins, p. 20)
You can make more smite attacks.
Class level 4+, smite ability,
When you take this feat, you gain one additional attempt to smite per day. Use whatever smite ability you have (for example, that of a paladin, a holy liberator, or a cleric with the Destruction domain). You can take this feat multiple times