Scourge of the Netherworld

There are whispered rumors that are spreading throughout the lower planes. Rumors filled with talk of a being that's either blessed by the Gods or fights with the fury of the angels of old. Some Fiends , demons or the Undead dare not speak your name. While others vow to rid you from existence itself, but barely able to hide the smallest hint of fear. You are the Scourge of the Netherworld. 

Choose +1 to Wisdom or Charisma but not exceeding 20,

+1 AC to Fiend, Demon and Undead only

Choose +1 to either Wisdom or Charisma Saving Throw.

Prerequisite: Before taking this feat you must have fought and defeated a Fiend, Demon or Undead.