So far I'm looking at:<br/><br/>Pleasure Devil (CR11) + Half-Farspawn (+3 CR) + Shadow Creature (+1 CR) + Unholy Scion (+3 CR) + Half-Doppelganger (+0 CR) + 2HD (+1 CR) + Monster of Legend (+2 CR) + 6 levels of whatever class I can figure out. Maybe Rogue or something like that. Or, if the Warrior's Way stuff is allowed, Sohei with the Martial Adept ACF.