The most difficult part of casting Milo's Illusion World Restriction was gathering a sufficient quantity of Realm Origin Power.
This was not merely a matter of the process taking too long. It could also easily draw the attention of local Da Luo cultivators, or even Dao Ancestors.
These local forces certainly would not stand by and watch someone steal the Origin Power of their realm. Conflict was inevitable.
And once they shattered the vessel used to store the Origin Power, all previous efforts would be wasted.
However, Old Ancestor Milo had never intended to personally gather it. Instead, he had deliberately spread a cultivation art throughout the Netherworld.
This cultivation art allowed certain Netherworld cultivators to cultivate using Heavenly Nether Power. Yet whenever they activated it, the restrictions on the Golden Altar would also activate, siphoning away a portion of the Heavenly Nether Power.
Although this would prolong the preparations severalfold, it was incomparably discreet.
Moreover, Old Ancestor Milo had intended to leave it for the future Luo Hong in the first place, so this drawback was practically no drawback at all.
"According to this jade slip, as long as I activate this altar, I can cast the restriction art and massively steal the Netherworld's power, merging it into the Netherworld Grotto-heaven!
"This truly is a lavish gift!"
Even Luo Hong, who had weathered countless storms, could not suppress the excitement in his heart at this moment.
The strength of Milo's Illusion World Restriction lay in the word "illusion." It could make the Heavenly Dao cooperate with anything he wished to do to the Netherworld.
It was precisely because of this that the portion of the Netherworld he stole could merge perfectly with the Netherworld Grotto-heaven.
Otherwise, the Heavenly Dao's resistance would impose enormous limitations. Not only would the Netherworld