I added a Cooldown to each of Kai's shots excluding his basic Chakra Bolt. The reason behind this is that Kai doesn't have to preform any hand seals or verbal components. Since all he needs to do is pull a trigger, I have added Cooldowns to balance it out.

Also, once I have time I will add a skill tree for him with unknown skills and known skills so that it's apparent how he will "level up" so to speak.