if you had a zanpakuto,what would be it's name and what would it do?

well, considering my sword here is based off a zanpakuto, it's name is Tenek, and it's ability

Tenek
skikai: tenek glows the colors red, black, or white, white increases speed, black decreases opponents speed, and red increases the power of the sword without making it heavier
bankai: tenek grows another blade at the end oh it's handle, and the user can minipulate emotions, power, speed, elements, and time.

''zangetsu is too cooler than your tenek.''

"you wish, that only gives you some more speed and power and a few new attacks, and a cloak."