Board Thread:Fourth Databook/@comment-4271790-20141104211032/@comment-945885-20141104230545

Kaguya's Murderous Bone Ash is listed as a kekkei mora. It says she can use it to alter the properties of her bone, hardening them and turning them into weapons. It's different from, and more deadly than, (Kimimaro's) Macabre Bone Pulse, as the target struck by the "ash bones" will immediately begin to disintegrate and crumble away as soon as their body is pierced. One caption mentions she can launch the bones as projectiles, the other says that the target will begin to "rot away" starting at the point of impact, spreading over their whole body until they completely crumble/disintegrate.