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He quickly withdrew from the illusion.
He closed his eyes in contemplation.
His face was pale, the Heavenly Yuan Technique was operating, constantly replenishing the depletion of spiritual power.
This kind of observation and comprehension is at the cost of consuming spiritual power.
Theoretically, a Grandmaster is unable to see this illusion.
Zhu Caifu gave it to him directly, also knowing that he could use spiritual power.
Of course, this is obvious, how could one control a blade with just Gang Qi?
After a moment, his spirit was full again.
He continued to keep his eyes closed, and his spirit reached out towards the wooden blade again.
Then he found himself once more sitting on the peak of a mountain under thick clouds.
The dark clouds pressed down overhead.
"Crack!"
Thunder roared.
Purple lightning flashed quickly, appearing and disappearing in an instant, then slowly appearing again, and disappearing once more.