I think this feat could be useful to Paladins and perhaps free up a few stat points to make them a little tougher. It would also go along way for older paladins who have more charisma if they didn't have it refunded.Messias [Class]
Your burning religious zeal is fueled by your strong personality.
Prerequisite: Paladin level 1
Benefit: Your main casting stat for your Paladin spells is changed from Wisdom to Charisma. Use Charisma to determine spell save DC, minimum ability score needed to cast spells of a certain level and bonus spells per day
http://www.dandwiki.com/wiki/Messias_(3.5e_Feat)