The Secret of Fighting Saint: Power

Riyaz Brown sorted out his thoughts and said, "I just want to know, with that last strike, was it the power you gave me, or was it the power that the Moon Shadow Knife itself possessed?"
The power of that last blow was so terrifying that Riyaz Brown did not think it was the power inherent in the Moon Shadow Knife, but rather the power of Liu Tianyu, which was stored in the Moon Shadow Knife using some secret method.
But when he swung the knife himself before, he felt extremely familiar with...