It was not that Ling Han did not trust Wally. This guy believed in equal exchange, and definitely could be trusted.
However, if he took the Origin Magic Cube, it would be like the scroll as well, just stuffing it somewhere into his robes and slowly refining it—going by his words, this was an analysis of some kind of energy composition and a decoding of its formula and module. Then, he would be able to extract the power of heaven and earth himself to fuse it.
Ling Han understood it, but had absolutely no concept about it.
What formula and module? So what if he knew it?
"The formula and module can be considered the equivalent of your cultivation technique," Wally explained. "However, the cultivation technique teaches you how to use the Regulations, while the formula and module are decrypting the power of heaven and earth so that you can channel the Source Power of a Genesis World. Do you understand now?"
"No." Ling Han shook his head.