Petty Revenge II
When players know that they could explore Limbo, they started to explore every nook and cranny of it. To their surprise, there is a chance that they can find floating spiritual items called Small Wisp. These items spawn at a small rate and finding one is basically dependent on one's luck.
The Small Wisp will reduce the experience reduction of anyone that finds them. It gives a 1% reduction in the penalty for experience points which is basically godsend for any player in the higher levels. Players in the lower levels do not need to get this as they can just recover that 1% with one monster at their level.
Also, the low-level players do not want to contend with the high-level players on the Small Wisp as they do not want to displeasure them. They also do not want to waste that much time lingering on this realm as they might suddenly incur the displeasure of the Anubis. They are guards that are very dedicated to their jobs.