Cursed Seal of the Spider

The Cursed Seal of the Spider is an extremely powerful juinjutsu invented and used by D.

Usage
It is a cursed seal administered to all members of Summit, an ANBU branch in Yamagakure, by D himself. The seal prevents the marked from divulging details about the organization, the village, or any of the members of the village. The seal is generally placed on the target's arm and takes the form of the insignia of Summit, which is a spider-like figure, with three triangles surrounding it. In rare cases, it can also be applied to the neck.

It also allows D to control the members of the organization if they attempt to rebel or disobey his direct orders. In such cases, he will preform three hand seals, which is followed by his chakra, which is implanted within the seal, taking over the victim's body, allowing him to both use their body as he pleases, and speak through them. He can release this control as well, if he so chooses.

The seal can also be used offensively, though with less benefits to D. By simply touching anyone he chooses, he can mark them with a seal without there being a significant change in their chakra, allowing them no time to notice it has been applied. By then using the same three hand seals, the seal's markings will spread, immobilizing the target and disturbing their chakra in a similar manner to genjutsu, making it hard, if not impossible, for them to use ninjutsu or genjutsu.