i played usko 5 years and whit the last expansion came the chaos expansion where mobs have drop items called monster stone
to explain
the monster stones geting droped by mobs the best drop rate have the uruk family ( uruk hai blade and tron )
when you enter monster stone you get like 40mobs whic giving great amount off exp it depends if you using exp sc or have prem also you get 40mobs whic drop 100k exp and 1 last boss whic giv 500k exp and a uniqe item whic was some gg they was called old uniqes one you set them on your self you cant trade them any more geting sealed i hope flegy wil bring up my idea about the monster stones
soo ppl wil have too do something
farming the MonsterStones also dont need too be 99.99% drop rate it can be 50% so ppl have something too do and farm and do them hope its good idea 
heh