The Iron Spine's sharp teeth bit through Leo's left shoulder for the third time. The pain was like lava pouring into his bone marrow. He bit his lips tightly and kept silent - the servants of the Setting Sun Sect were not qualified to cry out in pain. Blood dripped into the mud of the stable, and the animal shook its head, its scarlet eyes staring at his throat. The next second, the world cracked open. Leo saw countless golden threads shooting out of his pupils and wrapping around the Iron Spine Beast's spine. At the end of the thread, a young wolf burning with blue flames roared in the void - it was the sealed ancient form of the Iron Spine Beast. Numbers appeared on the thread: 97% probability of evolution, at the cost of permanent loss of pain in the left arm. Leo held out his hand. Three days later, there was a sect competition. The genius Herman rode his priceless thunder-maned griffon and looked down at Leo: "Common servant, kneel down and admit defeat. I will reward you with half your life." Leo touched the newly evolved blue flame wolf cub in his arms and smiled. The probability of him seeing Herman kneeling in front of him on the causal line - 100%, as long as he presses the stolen pain transfer rune in his hand. The moment the thunder-maned gryphon's claws shattered the ring, Leo crushed the rune. Herman's screams resounded through the sky, and he rolled on the ground holding his head: "My pain! Why is my pain burning!" Leo squatted down and patted his face: "Because your beast bit me three times. Now, with the profit." In the audience, Governor Castro's pupils shrank suddenly. He recognized the rune - it was the forbidden technique he had hidden for twenty years: pain transfer.