Cursed Tools were weapons generally used only by the Dark Faction. Their effects targeted people and did little against Monsters, but because such weapons were exceedingly rare, few people specifically guarded against them. In the original work, the Loki Familia suffered from this during their first expedition into the Artificial Labyrinth. Even Finn had nearly died inside.
Still, Finn could hardly be blamed. Who could have imagined that the Dark Faction would produce someone with Mysteries who specialized in Cursed Tools? That failure had cost the Loki Familia dearly. Even Line, the promising healer they had placed such high hopes on, had died within it. It was truly a great regret.
But with his warning, Finn's wisdom should keep him from making the same mistake again. Shen Fei could only warn Finn about this; it would not be appropriate for him to do much else. It would be easy enough for him to conquer the Artificial Labyrinth and eliminate the Fallen Elf and the Dark Faction, but he could not possibly solve every problem for them. Given the Loki Familia's circumstances, they would certainly take part in the final battle against the Black Dragon. He could not go so far as to kill the Black Dragon for them too.
It was not that he could not do it. The problem was that the Black Dragon was this world's ultimate trial. From the beginning, countless gods and humans had prepared for it. If he descended like a deus ex machina and slew the Black Dragon, would that not mean their sacrifices had been meaningless? To Ouranos and the others, his existence was the final measure for defeating the Black Dragon. Only after they had all failed would it be his turn to act.
And as adventurers, they naturally had to make