Frost Prison Calamity Ash?
Ian was slightly startled. He quickly recalled that he had also received a bottle of Ice-Prison Floating Dust from the guardian of the City of Knowledge... Though scarce, Frost Prison-type creations still existed on Terra today.
But he could not help asking, "Where did you get it? From the City of Knowledge? Frost Prison Calamity Ash may be powerful, but getting it into the body of a Fifth Energy Level powerhouse without having it expelled is a major problem—back then, Teacher was ambushed and only became unable to purge it after taking the Frost Prison Calamity Ash himself. As for Axel now..."
He looked at the Heavenly Blazing Godbird hatching before him. This state of total Aether True Form eruption was clearly not one that could be easily poisoned.
"Not from the guardian. His has already been weakened." Mikael shook his head. "This is the most primitive and destructive batch of Frost Prison Calamity Ash—one could even say the very last remnants. It is from the same batch that harmed the First Knight back then."
"This is my final trump card. With the power of the Heavenly Law Dragon, I can suppress all changes in the Aether Sea for a short time, even fine-tune certain constants of space-time and create an opening."
"That way, at the cost of my life, I can send the Frost Prison Calamity Ash into Father's body."
Ian fell silent. He finally understood why, in the other worldlines, Axel had gone silent after defeating Mikael, with no news of him afterward.
So it had been Frost Prison Calamity Ash.
The power of the Heavenly Law Dragon and Frost Prison Calamity Ash—those were Mikael's trump cards. They truly gave him the ability to drag any Fifth Energy Level being in this world down