Long Jingang was furious as his rage reached the limits.
If it wasn't for the treasure hidden in his body, he would've ended up badly injured from the exchange just now.
Jiang Ming's special ability was so overwhelmingly terrifying, that it made his soul tremble and his will to crumble. As such, he did not hesitate to evoke the secret treasure that he hid the deepest within himself, the Supreme treasure, Zhentian Tower.
It was a defensive treasure that Long Qian gave him when they were in the Chaos. He once told him to never use it unless it was a last resort. Else, he would be targeted by many other Supreme Experts.
A Supreme treasure was a treasure that would even cause a Supreme Expert's eyes to turn red from greed.