Armin's Background

While Chad and Denise watched the examination in order to ensure that nothing went wrong and also to find a good seedling, Armin continued on with his task.

He had just consumed a diluted blood of an Asura… A single drop of Asura's Blood was able to make 10 liters of these potions. The vial he consumed only contained 20mL of this potion, and it also had various ingredients to ensure that its effects were good enough for the human body.

Well, after Shane learned that the Asura was the origin of the Dark Arts, it was natural that he'd take advantage of this. Because of that, he envisioned that all Dark Arcanists who would practice the Path here would become better.

Of course, with the Towers they obtained in the Celestial Prison Realm, Vale could actually decide to teach all the Arcane Paths in the Marshall Academy.