Tian Changshan frowned. He had also heard of the attack by immortals and demons. This is a desperate immortal combat technique that involves defeating the enemy. Once you use the attack to destroy the immortal demon. The one who wins will die, but the one who performs the merit will die. They can also die from self-inflicted wounds. It is a thankless move that is only used in very extreme situations when you have no choice but to kill a thousand people and damage yourself eight hundred times....