Grand Bone Forest

Infusing her Bone Dust with Senjutsu chakra, Shiro scatters it across a wide area before injecting it into the earth. She then quickly forms the required handsigns before clapping, resulting in the individual bone fragments to absorb a large amount of Natural Energy from the earth and atmosphere. This causes the bone fragments to grow at a rapid rate, increasing their density to the point of being nearly indestructible as bone spkies spear across the land and high into the sky. Shiro is able to use the other Shikotsumyaku techniques through it as well as travel through the bones. Using Sage Art: Inorganic Reincarnation, Shiro can breath life into the bones to fight alongside her.

This technique produces so much bone that from miles in the are, it appears as a mountain of bone spikes spanning many miles.