Water and fire were completely incompatible.
Although water overcame fire among the Five Elements, this was not an absolutely restrictive relation. Instead, both were the weakness of the other.
While water did overcome fire, fire could also overcome water, and it would depend on which was the stronger.
Yi Tianhe was very extraordinary. He was not a Divine Fetus, but possessed a little battle prowess ability which allowed him to unleash battle prowess that was inferior only to Divine Fetus. This was also why he was even stronger than Tang Feng.
Unfortunately, Ling Han presently was a true Divine Fetus. Moreover, Nine Heavens Flame was stronger than a Divine Fetus!
…Divine Fetus could only draw on some Celestial King Tier-level power, but Nine Heavens Flame was a Celestial King Tier-level existence itself, and was naturally even stronger than a Divine Fetus.