An Earth-Rank Dou Technique.
This was a Dou Technique capable of drawing upon the energy of heaven and earth, fundamentally different from a Mysterious Tier Dou Technique.
The higher a Dou Technique's rank, the more it demanded of its wielder. An Earth-Rank Dou Technique placed particularly high demands on both the user's physical body and their control over energy.
Generally speaking, even a Dou Ling would find it difficult to unleash an Earth-Rank Dou Technique.
More importantly, Earth-Rank Dou Techniques were precious. How many people in the entire Jia Ma Empire possessed one?!
Even mighty Dou Huang experts used only Mysterious Tier Dou Techniques. Their mastery of Dou Qi was so profound, however, that they could unleash power comparable to an Earth-Rank Dou Technique.
But the Dou Technique Xiao Yan was unleashing now was a genuine Earth-Rank Dou Technique.
At that moment, not only Yun Leng but everyone in the arena underwent a drastic change of expression.
Clearly, they had all recognized how terrifying Xiao Yan's Dou Technique was.
"An Earth-Rank Dou Technique!"
Worry instantly clouded Yun Yun's face, filling her eyes.
She knew perfectly well that the technique Xiao Yan was using was a high-level Dou Technique that had truly reached the Earth Rank.
Although Nalan Yanran's Extreme Wind could also unleash power comparable to an Earth-Rank Dou Technique, it was merely a peak Mysterious Tier Dou Technique.
Elsewhere, Nalan Jie's face drained of color in alarm.
"An Earth-Rank Dou Technique! Xiao Yan actually unleashed an Earth-Rank Dou Technique!"
When two opponents were close in strength, their Dou Techniques became the key to deciding victory.
Xiao Yan not only possessed heavenly flames, but had now unleashed an Earth-Rank Dou Technique. For Nalan Yanran, this was unquestionably dangerous.
Jia Xingtian narrowed his eyes thoughtfully, then turned his gaze toward Chen