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« on: August 04, 2014, 02:00:44 PM »
You should create a category of things called "jutsu," in the vein of spells, powers, maneuvers, invocations, vestiges, mysteries, and other such things. So you'd have a column on the class table labeled "jutsu known" and a large list of different jutsu a ninja could learn. The various jutsu would have to be divided by power. Terms like "level," "grade," or whatever could be used. Naturally, you gain access to more powerful jutsu as you advance in shinobi.
Each jutsu could be catigorized as taijutsu, ninjutso, or genjutsu, with rules inherited so you don't have to keep repeating them. For example, genjutsu would all be mind-affecting, and would have shared rules for breaking the effects. Each jutsu could also have an element: universal, air, earth, fire, water, or lightning. With the exception of universal, these could only be learned by someone who has unlocked the appropriate chakra type. Actually, you could generalize this further, creating more categories of jutsu that can't be learned until the ninja has done something special.
I'd divide jutsu into instantaneous and ongoing effects. Chakra invested into ongoing effects are not available for use on other jutsu but aren't gone, so they can't be regenrated until the effect ends or is dismissed.
The chakra pool should expand in a smoother fashion. Rate of chakra regeneration should improve with level.