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.