The Dungeon Cave was getting more and more popular by the day. Since its inception, the number of adventurers had risen sharply, and it was just a matter of time until the 1000th card was printed. The overall progress was within the System's expectations. (But well above Jin's!)
Most of the adventurers were able to reach the Praying Mantis on the fifth floor, but beating it still proved a challenge without the necessary teamwork which many were still improvising on.
Starting with the sixth floor, the difficulty had ramped up by a notch, most notably in the form of more complex traps like falling nets and poison darts. The floor featured Boar Knights, who usually went around in groups of 3-5 decimating unprepared or weakened groups who had fallen victim to the various contraptions. (Jin was starting to think that he should formally recruit these Boar Knights for the extra manpower.)