Will Materialisation

This is an ability that allows the user to manifest his will as a black mass. Madara first used this ability to coat the original White Zetsu with it, resulting in the creation of Black Zetsu, a weaker version of Madara himself. This ability can be channelled through objects as well. The user is not only able to remotely manipulate the actions of his targets, but also telekinetically manipulate objects imbued with his will.

Trivia
It is whether unknown of how Kaguya manifest her will into the Black Zetsu which as a result turn against Madara.