Han Fei was good at fighting, and was even better at erupting.
He wouldn't waste time on an opponent who he could kill directly.
But this time was different. Fighting with brute force was the best way to save spiritual power, so Han Fei was not in a hurry. It didn't matter if he fought for an hour as long as he could kill these two evil spirits.
Of course, he still tested if there was any great technique that could suppress this humanoid evil spirit.
When he took out the Great Dao of Time and the Great Dao of Space to fight, Han Fei clearly discovered that the Great Dao of Time was ineffective against this evil spirit. Perhaps this thing was originally a special spiritual body, and their bones wouldn't decline because of time.