I've been messing around with a character concept for a Kyton-born tiefling. The plan is to work my way into the 'pain-taster' prestige class, most likely using the 'unbreakable' fighter to get the diehard and endurance feats for free. The concept is a character who is trying to purify himself through pain until his human side is flayed away, transfiguring himself into a pure Kyton. In game, I want him to be a damage-sponge tank, taking advantage of the tiefling's natural armor and energy resistance, and the pain-taster's resistance to nonlethal damage, Possibly utilizing feats such as 'flagellant' or 'inured to pain'. My question is this- are there any ways to turn incoming damage into nonlethal damage? Also, are there any shortcuts to whip proficiency? I'm not averse to a level dip or two (inquisitor with a whip favoring deity is something that had occurred to me). Intimidation will likely be a big part of this build. I was toying with 'blade of mercy' + 'enforcer' to demoralize enemies as well. Any ideas, feat/trait suggestions, etc?
