"The one I hold doesn't have Red Lotus Karma Fire; it uses Sinborne Fire as a substitute. The materials for the base, body, and top of the tower are only of Golden Core Level."
"The statue of the main body and the 'Merit and Achievement Book' must be of even higher levels."
This is the Artifact Combination Technique.
Normally, magic treasures and artifacts are crafted by using and refining various treasures to forge them into a tightly unified whole. Even Ning Zhuo's Buddha Heart Demon Seal can't help him determine the exact materials used.
For something like the Merit and Achievement Slaughter Tower, it's about constructing a basic framework and then filling it with treasures or magical items.
The base is the Good Leaf Lotus Platform, the body is the Formless Glaze, and the top is the Karma Mantra Pearl, forming a basic framework. The first layer's Red Lotus Karma Fire is a treasure; the second and third layers can be interchangeable depending on the person.
