When Jiang Yuan just mentioned that his trump card might be of no use.
The others, like the people from the Giant Troll Clan, the Elemental Spirit Clan, and the Undead Clan, all showed expressions of despair on their faces.
Among the three from the Mechanical Clan, two were completely enveloped in Mechas and their expressions were not visible, but the expression on Bai Xiu De's face did not change at all.
Similarly, the leaders of those clans just mentioned, Hu Qingwei, Tong Yuchang, and a few guys from the Demon Clan, also showed no change in expression.
Recalling the Life-saving Card his teacher had given him, Jiang Yuan understood.
They must also possess a Life-saving Card similar to the one he held.
If so, he'd better prepare for both outcomes.
If they couldn't kill the Rock Spirit Giant, then they would have to use the Life-saving Card and flee together.
In that case, his previous plan could not be implemented.