The Ninja element we are focussing on will be shuriken, the small throwing blades
Shuriken do not have to be the star shaped shaken, they can be any small blade that is balanced for throwing
At outrange, or even further out at Projectile range, you use the shuriken to injure or distract - this allows you to escape or close the gap
It is possible to incapacitate with a thrown shuriken but don't rely on it
It is possible to kill with a thrown shuriken but that is as much about luck as skill
If you choose to fight you would use a longer weapon, usually sword or 2 swords, or 2 knives, but might be stick weapon
If the gap is closed by the opponent you use the shuriken in trapping and grappling range, even on the ground
This may involve stabilising the position before drawing and using the weapon
We make cuts to the deadliest targets, the arteries, to get a bleed out:
carotid
subclavian
brachial
femoral
so, with knife newaza, we still attack the neck and limbs
knockout
choke out
bleed out
end result the same
Art of Winning