Assassinating Ork Nob of such power would be considered foolishness by many, especially when taking into consideration the fact that Arcturus was just an Epsilon-Grade Warrior and Delta-Grade Psyker.
The disparity in power between the two parties was big, as the Ork Nob was already standing at the Gamma-Grade, most probably not really that far from reaching another Grade, and it seemed that this one was even having some sort of mutations that would be most probably increasing its power several times over.
His best bet was on the combination of the Sardau Sword Style and empowerment from the Super-High Risk Primal Psyker Ability Dimension Empyrean. Sardau Sword Style had several stances that were practically like heaven-sent for assassinations.
