You know, it's not easy getting these previews of the upcoming ninjas for Bushido from GCT Studios. They're not exactly known for letting themselves have pictures taken of them. And getting stats on their abilities is even more rare.
Shizuka will fit in very nicely with the other ninjas of the Shadow Wind Clan. Good stats all-around and some useful Ki Feats. Plus, she can become sharp. I assume she's some sort of anthropomorphic porcupine under the black robes. She's also slightly cheaper than the other ninjas.