Red Mythical Ability—[Great Sun Principle]!
Even he hadn't expected that the ability he had acquired after the second trial would play such an unexpectedly crucial role in this one, having barely shown any power during the last trial.
It was even more exaggerated than the time during the second trial when electricity had a restraining effect on the Undead.
One can only say that having a solid foundation always brings significant benefits, as you never know when it will play a pivotal role.