Kurosu

As one of his few seal-based techniques Magyaku has used this technique to it's absolute pinnacle. Based off of a more widespread explosive clay-based technique, he has molded this into an work of art. When touched physically the seal immediately and rapidly sends a multitude of atomic level explosives into the body to detonate, causing the body to seemingly detonate. With imbued chakra so small, it'd be undetectable to most sensors. Magyaku has also tagged projectiles with this seal and when hit they he can activate it to have the same effects. Those who have seen it before death have mistaken it for a use of Dust Release, however Magyaku denies this before they perish.

Trivia

 * The name can be translated to "Cross", to which Magyaku refers to it as the cross between life and death.