Killing Mephistopheles

The world stone fragments inside Mephistopheles's eyes started to flash very brightly before they finally extinguished. It became this beast that looked like it just woke up from hibernation. It let out a terrifying shriek towards the sky. Its eyes became red, and its body dashed forward with "lightning" spells generated in both of its hands.

Abel's power of the Will continued to be fixated on Mephistopheles. In his detection, Mephistopheles was the very same as a beast with no intelligence. He decided to retaliate in a befitting manner. "Bone cage." As the spell runes flashed across his hands, a pile of bone walls appeared right next to Mephistopheles, trapping it in the center. It became much easier to get this right now that the world stone fragments disappeared.