The Unbreakable Oath.

A couple of days later....

Felix had finally made up his mind on the remaining abilities of the hammer...He handed the list to Cyclope and was informed that he would be called when he finished his work.

"By the way, have you decided on the name yet?" Cyclope asked.

"Not yet." Felix smiled, "I think the name will come to me on its own when the hammer is ready to be wielded by me."

From his previous experience with the hammer, Felix knew that he wasn't ready yet to even lift it. Don't even mention using it as a weapon.

Fortunately, he had an entire century to increase his strength and be worthy of wielding it.

...

Sometime later...

Felix and Candace took off towards the Sunhold city after forging a cubic purplish metal that resembled the Nethersteel in almost all departments.

It wasn't hard to forge it when he had the help of Cyclope's automatons and all kinds of metals lying around.