This situation proved that fortune aura is not an omnipotent thing. As long as the variable is strong enough, the fortune aura would turn useless or have little effect
"In fact, the reason why the representatives that the Waterside Tribe met are kinder than the others might be because of Stone Head's fortune aura"
"Instead of meeting representatives that would resort to the use of force and killing, the Waterside Tribe met Wermon and Philome"
"Because of that, Stone Head's fortune aura might have been completely used up. He would return to being an ordinary person with an ordinary level of luck"
At that, Rezen nodded his head. Fortune aura is not omnipotent nor could it directly save the heavens' blessed but it could cause 'coincidences' to happen so that the blessed would survive