Surprising this one was missed:Do Heroic Mechagon.
OMG - this sounds as confusing as heck. And I am super irritated that I don’t have a choice with the stupid corrupted item in the regular world. I have learned to shard or sell it even if it’s an upgrade, because it seriously ruins the game for my alts. What possessed Blizz to do it for regular WQ and rewards beats me. Give those corrupted awards for the Visions stuff...
In case you have started this (like I did) and don't know it...open your Quest Log and look for anything labeled Nazjatar that will get you moving in the right direction.