MAGNUS REVERSE REVERSE POLARITY
This aspect is an easily justifiable defense. Even the base specs of this ability look quite appealing, with a 20 second reduction in cooldown and a nearly 60% increase in effect area. While synergies with other hero abilities are limited, it's not that important unless you're playing Magnus as your main source of damage. In other cases, there are other aspects worth mentioning.
First of all, the troll combo remains unchanged. While you can do 200 more damage on the other aspect, this is the best case. However, the main strength is not in damage, but in isolating the target from allies, which remains unchanged even with the “less effective” aspect.
Playing in a team with a ranged kerry, RRP looks preferable for taking the enemy out of combat position. Sometimes all you need to do is jump to an ally and use your ult to turn the tide of battle. For example, a hero like Drova would appreciate the opportunity to avoid focusing on himself.
Even in cases of full-on battles and initiations, RRP remains useful. It can be used to push a Lifestealer away from allies so that he doesn't have time to save himself or someone else. Or break Tether from Io, preventing a double heal from Meki or a save on Relocate. Against Abaddon who has activated his ult, RRP is especially effective, forcing him to stand in the corner while you destroy his allies.
Ideally positioned heroes spread out to 1700 units, making it difficult to approach and assist. Therefore, items like Glimmer Cape, Force Staff, and Wind Waker cease to be a problem.
So, this aspect is very situational and specialized, showing itself best against strong saves or AoE heals. It may not be understood by your team, but enemy supports will definitely realize that they are in a lot of trouble for not having Glimmer Cape.