Naruto, Ninja Arts!

poison profession change
The passive stays the same
+ Shikomishidan - Shoots 1 tile Projectile, on hit poisons and 3-5 stacks of bleed on enemy (remove hand seal and make it insta cast)
+ Multi Shikomishidan - Shoots 3 waves of 3 tile wide Projectile, on hit poisons enemy (change it into like chidori senbon)
+ Dokugiri - the user molds chakra in their mouth, then changes it into poison gas they spit infront of them that slowly expands (kinda like sawa, expands from 1 tile to 7x7, stays for 30 sec)

How about for dokugiri it spawns 10-20 tiles of poison fog that will travel around randomly. No initial damage but the more of them you run into the longer of a poison stack you have on you. (Probably something around 1/10th nin damage with 10 tick's per tile breathed.)