It means , it ' s by having three nightblades with destruction staff ultimate and alliance skill proximity detonation actually . The destro ulti is one of the new weapon skill line ultimates . It has a significant cost , but it ' s a very strong and very large area of effect . Proximity detonation gets stronger the more enemies are nearby . You cast it on yourself and then ideally get in the middle of a number of players . This used to be used to great effect with a magicka nightblade who would use cloak to get in close , then use the siphoning skill line ultimate to stun nearby enemies so that they couldn ' t block the proximity detonation . This could potentially be even better if the third or a fourth member used that stunning ability , but with three of them , as the comment suggests , it should be enough damage to diminish the group substantially .