Shadow Asgard

Shadow Asgard is Koshaku Kyuuketsuki's technique utilizing his Yang Release. With this technique, he gives "life" to any shadows near him, and uses them to attach to parts of his body and heal him. He can regrow fully functional limbs or organs this way. He cannot heal from a instantly fatal strike, such as beheading or a stab to the heart; however most else is within reach.