Zero no Kata - Masamune
Shadow Star Zeroth form - Masamune.
The original form of Black Star's and Tsubaki's Shadow Star soul resonance. This particular form of Shadow Star debuted along with Shadow Star's mutliple forms in Black Star's final battle with Mifune (Soul Eater Manga). In this form shadows wrap around Black Star forming what appears as a scarf. The scarf is can solidify itself at will an can act as a blade or even acting as another limb.