Locke and the others began their testing. First was the Nine-Headed Snake. Although it was incredibly powerful, it could indeed stack Permanent Defense Fields, creating nine layers of them. This level of power was simply unbelievable.
However, there were still some issues—not flaws, strictly speaking, but problems with how it was used.
After all, this was a combined spell jointly cast by nine wizards. It was inherently complex and inevitably carried a certain degree of spell-related risk.
When the nine wizards simultaneously infused their mana and Permanent Defense Fields into the Nine-Headed Snake Magic Plant, the process was still quite dangerous. If one wizard suddenly interrupted the operation, it would instantly cause an energy imbalance in the Nine-Headed Snake's vines, resulting in the other eight Permanent Defense Fields attacking that wizard at once and killing them in an instant.
Secondly, none of the nine wizards could be too weak. Otherwise, an excessive disparity in strength would also trigger the phenomenon described above.
Of course, strictly speaking, this could not be considered a flaw of the Nine-Headed Snake.
It was simply a basic requirement for using a weapon.
Under normal circumstances, as long as a regular First-Ring Wizard did not deliberately try to sabotage the process, it was impossible for anything to go wrong at this stage.
Next, Locke took charge of testing the maximum duration for which the Nine-Headed Snake could maintain its stacked Permanent Defense Fields. In theory, there was no upper limit, but in practice, the limit was determined by the Nine-Headed Snake's ability to withstand pressure.
When nine Permanent Defense Fields were stacked, the Nine-Headed Snake itself had to bear the energy of all nine fields. This process generated immense heat, causing the entire Nine-Headed Snake to grow hot.
Originally, this was not a problem. The Nine-Headed