What Logan most feared was running out of spirit stones, but now that he had sixty million in hand, his odds of defeating the Sacred Thrones of the Demonic Sky Gate had increased to sixty percent. The moment his array reached great achievement, should the strong ones from the Demonic Sky Gate dare to come, he would ensure their one-way trip.
Actually, after the several lords had left, they had initially thought that gathering spirit stones would be very difficult. However, as soon as they descended into the cities, families and the like offered their support, and in no time at all, they had gathered several tens of millions of spirit stones in less than half a stick of incense's time.
That is to say, aside from the spirit stones given to Logan, each lord still had over ten million in their possession. They did not tell Logan about this because they wanted to reserve this batch of spirit stones for unexpected needs. What if Logan's array ran short of spirit stones and needed more?