Okay the fighting system is just alittle bit buggy so bare with me... I've been thinking about it like this...

taijutsu- Decreases Stamina, Low Damage, three strikes.

Ninjutsu- Decreases Chakra, Lots of damage

Genjutsu-- Decreases Stamina and Chakra

DEX- How well it takes to hit your target

STR- How much an attack hurts physically

SPD- How well you can dodge

INT- How well Chakra control and Jutsu damage is.