What is that....low profile?

Because the 500 runic armaments were made out of Black Iron ore, and engraved with [Endurance] and [Sharpness], two of the easiest runic constellations to inscribe, there was almost no powerhouse who believed that the runic armaments had been found in the ancient ruin's dungeon.

Instead, all of them were pretty sure that the runic armaments had been manufactured by someone.

All of the ungraded runic armaments they had seen so far were created out of unknown metals. 

There was not one exception, which was why it could be said to be 'weird' and 'unrealistic' to find 500 ungraded runic armaments made out of Black Iron ore all of a sudden.

The ungraded runic armaments that had been found were not made of an extraordinary material or anything like that but nobody knew of them.

Thus, it did not take them long to figure out that one of their own and a fellow human had created the sets of Black Iron Weapons.