If someone could see the conditions of Huo Yuhao's and w.a.n.g Qiu'er's soul power, they would discover that both were dropping.
w.a.n.g Qiu'er's dropped because she was resisting the power of the domain, and Huo Yuhao's dropped because he was releasing his power.
In comparison, Huo Yuhao's soul power depletion was less. After all, he was the one releasing his power. Furthermore, in an extremely cold environment, his soul power would recover faster than w.a.n.g Qiu'er's. With the a.s.sistance of the Snow Lady, while his cultivation could not compare to w.a.n.g Qiu'er's, his domain was more taxing on her than him.
However, Huo Yuhao was still a five-ringed soul king, and w.a.n.g Qiu'er was a six-ringed soul emperor. If they both had Ultimate Strength martial souls, both of them would have similar soul power. However, if they continued to deplete their soul power like this, while Huo Yuhao's depletion was slower, there was still a big difference between his soul power and w.a.n.g Qiu'er's. No one knew who would be the first to run out of soul power.
Huo Yuhao released his Snowy Dance of Ultimate Ice not just to deplete his opponent's strength. It was also because he knew he could not go against w.a.n.g Qiu'er head-on. They had been through thick and thin together, and he didn't even want to fight her from the start. The other reason was that he was searching for an opportunity as well. In the domain, w.a.n.g Qiu'er would be severely affected. This was equivalent to sealing her Golden Dragon's Perception, while Huo Yuhao could sense her changes at any time.