lich/sister level 1 : enemy level 55-75
lich/sister level 2 : enemy level 50-60
lich/sister level 3 : enemy level 55-70
isn't it strange?
level 4&5 is ok.
lich/sister level 4 : enemy level 75-90
lich/sister level 5 : enemy level 90-110
i think it should be incremental through whole level.
just for example :
50-60
60-70
70-80
80-90
90-110