I've tried Jomon ninjas a bit and they work early on if the target has no bodyguards. They can throw 2 poisoned shurikens a round (2 times) and if those hit they will kill low hp stuff.
Just one or 2 bodyguards ruin his day though and if the target is even semi respectable the ninja is doomed.
Prefer my Tlahuelpuchi with mictlan or star children overall
