Been thinking about Ninjas lately, seems people tend to go for the combat ninja style, or the stealth assassination ninja style, of course there is overlap, but I think it would be cool to have the ninja choose one of two paths.
In the combat path the Ninja would be just like a ninja is now, except it would get doublesheath and a toned down version of shadow arts, a more powerful push for those larger opponents, it would also get a few more dusts and smokes, maybe a dust for faerie fire, or a plague smoke or something, and shurikens that have a chance to cause bloodloss. As a penalty they would have a gimped study which would take them a long time to get a person soul marked, and would really need all circumstances in their favor to make an assassination happen.
The stealth Ninja would lose third attack and pugil, not have throw, doublesheath, caltraps, grapple, nerve pinch, push or shadow arts, and only have a basic blindness dust. What they would gain is autosneak, falcon eye, a death kiss with say 1/4 chance of working, and the ability to hide in all places thieves and rangers can hide or camouflage. They wouldnt get detect camo mind you, but a stealthy ninja would have no problem, hiding in the woods.