I agree with Jubaku or even other Ni spells. But why Kurayami: San? Kurayami: Ni has the same effect as a fully merited Blind II on RDM. So I think this one is ok.

Skill ratings sure need to be fixed. As being said Ninja is the only job that can use Katana it just don't feel right to have A- there.

For Shuriken... really want to use them, but the good ones are so expensive and doesn't even stack to 99. It feels like you throwing with gold nuggets.