@OliWhail @eaglejarl @Velorien
I had an idea re: Ninjutsu rebalance that you guys probably had too but I'm gonna share it anyway:
Every element type gets its own skill. Techniques of that element type scale that skill level by an amount appropriate for the skill, and cost a flat amount of XP to learn (and possibly an additional quantity to get it up to par? It'd be weird to be immediately skillfull in a technique you just learned, but being good at the element
should have
some impact).
For instance:
In spite of being an easy technique to learn, Water Whip scales well because it's got basis in both fighting skill and ninjutsu skill (this would also probably require that it have a Dex requirement). It'd probably have a 1.0x or .9x scalar, and would cost something like 10 XP to learn, +1 XP per 10 levels in Water Ninjutsu.
Noburi learned it when he was a genin, so it only cost 10 XP for him to learn. He presently has 34 Water Ninjutsu skill, so he rolls 34 dice with Water Whip (which may be modified by Chakra Boosting at the scaled value).
On the other hand, Syrup Trap is a debuff that scales not only on Water Ninjutsu but also Tac Move, so it will have a much lower scalar -- something like .5-.7x, leading to rolling between 17 and 23 + Tac Move dice with it.