Lu Mingde also wanted to exchange with 222 for high-tier immortal cultivation treasures or technology, but the amount of national destiny required for high-grade defensive dharma artifacts was simply too astronomical, and he couldn't afford them.
A level-four defensive spirit array covering a radius of a hundred miles, capable of withstanding attacks from a Nascent Soul powerhouse, would require all the national destiny of those three island nations from back then.
As for dharma artifacts that could enable Foundation Establishment Cultivators to barely fight against Golden Core cultivators, they weren't particularly expensive, but such items would easily make wedding dresses for others.
Chapter 90