In his human form Darkus Arcturus is just as deadly, he spends most of his time ploting the death of his foes,which are many. Darkua Arcturus is known to have only stayed in this form for more than a day at a time once that time being in chicago (not suprising at the same time as a famous crime lord). Darkus Arcturus has a much larger rivalrie with Haos Arcturus in their human forms due to the fact that Haos once tried to Stop Darkus from killing in this form, to Haos's mistake