Now, he was almost certain that this piece of metal was superfluous in the mechanical system and wouldn't display any effect.
'Could it be that the Dark Sage was careless while crafting the mechanical system and accidentally forgot a piece of metal within it?'
But this possibility was almost negligible. According to what Lin Yun knew, the Dark Sage was extremely rigorous, especially in the field of alchemy. As the Gravedigger of the Silver Era, how could he have made such a rudimentary mistake?
Then...
The only possibility was that this piece of metal hid some sort of a secret.
After thinking about this, Lin Yun suddenly frowned and started imbuing some mana into the piece of metal.
One minute, two minutes, three minutes...