I know many players would be absolutely nuts over the idea of having an opportunity to farm some serious xp towards LDoA. How about one weekend of Hard Mode in presearing? Of course would need to drop the requirement of level 20 to access hard mode, stop tome drops, and maybe even only add 5 levels (or 50% to current level).
With the max party size at 2 and limited skill sets (tome users should be permabanned IMO) it would sure add some excitement to the grind that is LDoA.
Absent this type of event, or the addition of a level 15 boss (hide him in the depths of the catacombs surrounded by many level 10 shaman even), the LDoA title is really nothing but a test of one's internet connection and willingness to waste energy leave a computer running 24/7 for a couple months. (runon sentences FTW!)
F

except no monsters above lvl 16.
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