Its a Kidō and cutting(mainly cutting)
is always active
It looks like a normal Zanpakutō with a tightly bound cloth that is as sharp as diamond edged steel
Launches a claw shaped cloth that can cut or grab what ever I want from any distance and I can still use my Zanpakutō normally
Spins the cloth bound to Akuma-Zukku at the speed of sound and the cloth can absorb any energy, wind, water, fire, lightning or gas based attack and it expands depending on the power and then fire the same type of attack back at to source
My body is wrapped in tightly bound cloth with 2 large stripes of cloth going over my shoulders with magic looking writing on them.
Akuma-Zukku now has a mind of its own so it will protect me with indestructible cloth shield even if I don't know of the attack and can retaliate with out my command (Yes like Garra's sand) by launching a spike shaped cloth or thousands of nearly invisible threads that can completely destroy weaker beings.
Akuma-Zukku can also absorb any energy, wind, water, fire lightning or gas based attack and amplifies my powers
Akuma-Zukku can turn into and shape I wish.
The cloth leaves my body and forms a large evil demon, that is out of my control as it lashes out on whatever it can.