One of my friends is going to play a Dhampir Paladin in our new campaign (Carrion Crown) starting next saturday. Since a Dhampir functions like an undead regarding positive/negative energy, I was thinking to allow him to switch Lay on Hands/Touch of Corruption (Antipaladin's) in case he needs to cure himself, he would lose his paladin abilities if use it to harm anybody.
I also will include the cause wounds line on his spell list in order to allow him to prepare/use wand these spells, again it would be an evil act to use those to hurt anybody else.
I won't include the chanel negative energy.
What do you think, it's overpowered or not?
Regarding the Paladin's code I think it can not be problem if he limits the use of these evel spells/abilities on himsef or over a friendly undead (maybe it won't happen at all).