The success rate of the Abyss Temptation skill was quite high, but its drawback was that it took a long time to cast, and the enslaved creatures were prone to betrayal after being charmed.
With the Bone Shield, Song Jian could cast the skill before the shield shattered. As for betrayal, he only needed the Flame Demons to act as cannon fodder; they would probably die before they had a chance to betray him.
As Song Jian ventured deeper, he encountered three Flame Demons huddled together, blocking the path ahead. If he wanted to continue further, these three demons would have to be eliminated first;
Along the way, some Flame Demons were positioned off the beaten path and could be bypassed, but some not only blocked the path but also moved back and forth. If one didn't have stealth skills, it would be impossible to get through without exerting much effort to kill them.