Skull Spawn Blade Maggot Hammer Scourge Horror Fury Heart Fist Blight Spike Strong Sinister names are generally made up of between one and three parts, the title, surname, and last name. Thus, in choosing from these at random you might come up with the name Baron Bloodspawn. Or if you wanted something shorter, you could just choose two and become Blackfist. Whatever the case, don't be limited by the constraints of this chart. The next thing you should consider is your motive.
Evil comes from many sources, so let's take a look at just a few.
The sheer overwhelming desire to obtain as much power as possible, to crush all beneath your might and control all that exists. This is power to destroy your enemies, to direct world events and control people's lives. But perhaps more than all that, power to do anything you want, and be completely unaccountable for all actions and sins. This supremacy is of course very tempting, and explains why power has remained the top driving force amongst evil-doers for the last two millennium. They despise everything that exists, and would like nothing more than to rain destruction upon this meager world that pains them so.