Nowadays, the electromagnetic cannon is Austin's most powerful attack technique, but it, however, is entirely ineffective against the giant zombie flesh.
To destroy the giant zombie flesh made up of countless zombie creatures, we must develop more powerful attack techniques, otherwise, the rapidly regenerating zombie giant flesh will remain unaffected.
Spherical lightning is exactly the attack technique comparable to forbidden curse level that Austin wanted to develop upon awakening from his slumber, and as his realm elevates, his bloodline soul fusion makes some vague memories of the past clearer, even recalling the scientific conjectures he once read about the formation of spherical lightning.
He initially thought that following those scientific theories and assumptions, combined with his own control over thunder, he should easily be able to create spherical lightning.
But as it turns out, he was overthinking it.
