"Now it's time to learn magic again. But honestly, Teacher, we still have no way to figure out how to cast magic."
Xiao Changge said.
In Tang Jia San Shao's original canon, "casting Holy Demon Continent magic in Douluo Continent" was not a standard setting—the Holy Demon Continent was the primary plane of Divine Throne, while it and Douluo operated under two separate sets of laws: Soul Power and Martial Souls versus spiritual power and Class Spirit Furnaces. The original story had no conventional method for conjuring Holy Demon magic out of thin air in Douluo.
However, in the context of fanfiction, derivative works, or crossover settings, the common approaches to "casting Holy Demon magic in Douluo" could currently be summarized into several paths:
The only bridge even remotely related to this in the original canon was Electrolux.
Electrolux was the Holy Necromancer of the Holy Demon Continent. His remaining Divine Sense crossed the barriers between planes and bestowed the Holy Necromancer Martial Soul upon Huo Yuhao in The Unrivaled Tang Clan. Essentially, Necromantic Magic had taken root in the form of a Douluo Martial Soul.
In other words, magic was not cast directly. It only worked in Douluo after being translated by the plane into the form of a "Martial Soul/Soul Skill." This was the greatest extent of crossover permitted by the original canon.
Common fanfiction methods for casting Holy Demon magic in Douluo:
Cross-plane energy conversion: refine Soul Power according to the properties of spiritual power, or use immense spiritual power to directly draw upon the elements in Douluo's air, then construct Holy Demon magic arrays yourself through elemental affinity, array patterns, and energy ratios.
Spirit Furnace/Eternal Tower anchoring: use Electrolux's Eternal Tower and Spirit Furnaces as transfer stations to "smuggle" Holy Demon spiritual power into Douluo before