No idea, personally haven't done it. My idea though would probably be equip whatever weapon you have that does the most damage with an alright recharge rate and abuse the ever living hell out of the time-stop counter glitch. Mind-numbing and boring, but it works.For anyone who went through Lester difficulty... how are you meant to defeat bosses accompanied by those priests with healing spells? A single spell that accidentally goes off pretty much undoes several minutes of fight...