If I wanted to check remotely whether I have looted the Death Metal Knight on a char for this month (as the game indicates by no longer showing a star on the minimap), what macro could accomplish that?
as far as I know, rares are tracked by hidden quests, like world bosses.
If you know the quest id, you can use
This would simply say true or false in your chat frame.
I couldn’t find the quest id for the Death Metal Knight. If you are up to it you can check this topic out:
https://www.wowinterface.com/forums/showthread.php?t=56625. They explain how to obtain the quest id yourself.