Dragon-Scaled Tessaiga

The Dragon-Scaled Tessaiga is the final form of Tessaiga after killing Dakki.

Appearance
It looks the original Tessaiga but the top half is covered in Dragon Scales.

Powers, Skills and Abilities

 * Yōki Absorption: After breaking the yōkai sword Dakki, Tessaiga gained the ability to absorb an opponent's yōki (demonic energy) directly. Kai, being half, limited the amount of yōki the sword can absorb before it backfired on the user. After being bathed in Yōreitaisei's senki, the regurgitation stopped.


 * Yōketsu Cutting: After realizing the true nature of the Tessaiga was to cut, Kai learned how to see yōketsu (the source of a yōkai's yōki) and used the Dragon-scaled Tessaiga to cut it, instantly destroying normal yōkai. Beings created of many different yōkai, like Naraku and Mōryōmaru, have several yōketsu, which means cutting them will destroy parts of their body and prevent regeneration of the destroyed parts; however, the Fuyōheki proved to be a nuisance as it hides yōki, preventing Kai from seeing where to strike. Against stronger yōkai, the Dragon-scaled Tessaiga could cut away portions of its opponent's yōki to weaken their power, which could prove fatal.

When Inuyasha cut his own yōketsu, his full yōkai power was released and the energy flowed back into himself and Tessaiga, which caused his yōketsu grow until it devoured Sesshōmaru's completed Meidō Zangetsuha.


 * Nikosen's Life-Root Stalk: Kai gains the power after beating the yōkai Nikosen, who was once a hermit and imbued his holy aura in the Life-Root Stalk. After absorbing this power in to Tessaiga, Kai gained the power to control the Dragon-scaled Tessaiga's demonic aura with the holy aura from the Life-Root Stalk.

Owners

 * Kai (Currently)