Here goes a weird concept for a character for dnd 3.5: Allen the Anomaly: Allen is a 16 years old level one human commoner (with npc ability scores and all, although with little to no charisma since hes shy and quiet, rather high inteligence and particularly high wisdom) who sees himself dragged to a journey, however Allen has a bizarre powe: he levels up based on his class level +1 rather than his character level, so the more he multiclasses the faster he will level up, although he only gets bab, hit die, brb and skillpoints from 3 classes each, also his ability scores only each 8 levels instead of 4 (although he does get a extra feat each 4 levels as normal) and he gets the full bônus from his commoner levels, prestige classes level up based on his class level +5, epic prestige classes level up based on his class level +20. The exp rewards he gets along with other things that are usually based on character level like his challenge rating are based instead on his hit die. While this character woud probably eventually become crazy overpowered, he starts incredibly weak, making a lot of room for character development. What do you think?