In Polarity Switch, shoot enemies with a matching polarity, or risk being stunned.
The polarity switch is a basic concept: each enemy will have a color above their head and you will have a color on your arm. No matter what color your arm is, you determine which colored enemies you need to shoot. Both colors are yellow and blue, and killing enemies that match your polarity will grant a stacking damage buff that caps at five stacks. Taking the opposite color will remove the buff and shock you.
There is some nuance to the polarity switch. If you want to change your polarity (i.e. your color), you can either reload your weapon or swap weapons. It will change your color and make it easier to deal with enemies. You can also mix enemies to change their polarity, but keep in mind that this will reverse the polarity of any enemies present, not just the one you hit on the chin.
While the global event is active (which must be toggled manually, as described here), you only match groups that also have the global event active. In addition, as a group, the leader will determine whether you are organizing the event or not. Well, in theory. After hours of testing I have found that individuals can toggle the event for themselves when in a premade, although this will display the polarity switch icons for other players to see - they will simply not be affected by the modifier. It's hard to tell if it's a bug or not, but you can technically run the event even if it's clustered.
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