Slash is Slice's ninja apprentice, who has been taught to use sharpened ninja weapons to maximum efficiency. He is particularly proficient with a customized Chinese broadsword made of Aogami blue steel, that has been modified to split apart into two slimmer blades.
In addition to this, he has focused himself on mastering the ninja tekagi and of small throwing knives, which he uses for underhanded attacks.

Most of the body had already been done for my first take on Satan, which was eventually discarded in favor of something that gave him a more mysterious air. I decided to put the body to good use in making Slash. I went through a few possible head choices before settling on the Alley-Viper Officer's. The Blue Spirit sword was a no-brainer, and instead of snagging a staff from another figure, I went with a combat claw so he could slash even without his sword.