Capítulo 2127: It's No Secret 

"Don't get too confident. This weapon will give you a chance, that's all. It will still be difficult for you to defeat your enemies. And many of your world will likely perish before the end of the war that awaits you.

Moreover, I can't guarantee that your enemies don't have something similar to this weapon. Anything is possible, Minos." The seraph advised.

As he spoke, a tattoo of wings appeared on one of Minos' hands, marking the promise he had just made but also giving him the vowed artifact.

"Do not use this unless you're in a deadly situation or trying to kill a level 100 opponent. With each use of this weapon, its essence will weaken, and the weapon will gradually lose its qualities." The seraph commented as he saw Minos looking at the hand where the tattoo was.

Minos watched it solidify and felt its power, even though he didn't use it.