In a pitch-black underground cavern, ripples spread through the void, and Isaac's figure slowly emerged from within.
He looked around and nodded in satisfaction. A Demigod outside this world was overseeing this war game and had set its tone in advance. That meant many complicated experiments were impossible, such as human dissections and human experimentation.
At most, he could only observe. And considering the subjects' mental states, the observation period could not be too long—
This made data harder to collect, but it was not without benefits. At the very least, the experimental environment did not need much. Any patch of ground would do.
After inspecting the surroundings and confirming that nothing was amiss, Isaac casually raised a magical barrier to hastily conceal the area, then released the petrified Rex.
Once the magical barrier was in place, spell after spell blossomed in Isaac's hands. Unlike the barrier, these spells were not meant for concealment, but to restrain Rex and the others so that he could study them more easily.
Otherwise, their occasional struggles would be quite troublesome.
After finishing the setup, Isaac lightly flicked a finger. The petrification on Rex was removed, but before he could act, purple magical light flashed, freezing him in place. Only his eyes could still move.
Then Isaac flicked his finger again, and the Magic Array Guards that had originally fused with him separated one after another, reverting into living people.
At the same time, while Isaac was stripping away the Magic Array Guards, Demonic Claw Hamon emerged from behind his head. Its savage, razor-sharp claws danced casually as strands of magic power gathered to a mysterious rhythm.
A moment later, once all the Magic Array Guards had been separated, a huge eye glowing with faint magical radiance appeared behind Isaac.
**Authority Spell: Eye of