If you are a Warrior above level 75, use a Magic Mace, and have an 
Orb Of Holding, go to Drear Valley east of Monmouth Teleport. Once
there, attack any Aegiscians you encounter. Once you enter the 
combat cloud, use your Orb Of Holding on the Aegiscian. This will 
hold him for five rounds. Then, begin attacking him. You should 
kill him quickly, before he can even move and get yourself a 
large amount of experience points.