Blood Reverse (血塊反転, Kekkai Hanten) is a Anathematic Ninja Art that extracts blood absorbed by the body.
Blood Reverse is the only means of combating Blood Riot as it stops the excess blood flow that comes from using it. Blood Reverse is powered by consuming the shinobi's vitality. Overuse of this technique can lead to death.
The user creates a seal on the palm of their hand and directs it at the person of choice to initiate the art so that they my drain blood from their bodies which in turn causes it to dissipate in the air.