Even though ninjas never really wrapped themselves in black like we see in pop culture (that was a kabuki theater thing. Ninjas dressed like everyone else so they didn't stand out), it's still fun to have ninja figures running around on our battlefields in their iconic look. Well, if you're a Test of Honour player, you can grab a bunch of different ninja sets for the game. There's a big set, a blister, and the Dojo Assault bundle.
From the post:
Hiding in the shadows, creeping in the corner of your eyes, the Ninja of Iga have selected you as their next target…Source
Masters of stealth, ninjitsu, both hand to hand and weapon combat, the ninja is an unprecedented threat on the battlefield, even a skilled samurai has to be cautious when fighting against a ninja!