From 2019 onwards, during each day of Brewfest there will be either a Hozen, Alemental or Dark Iron invasion, in the Brewfest camp.
This event repeats every 30 minutes, exactly on the hour and half hour.
When the invaders have been defeated, one of these three items appears in front of the stage: Hozen Totem, [quest=56322], Hozen Totem. These offer a simple daily quest hand in. This rewards 10 No [item=37829].
Following the event, the quest item does not despawn for five minutes after the event; during that time the quest may be done by anyone who has unlocked the Brewfest daily quests, even if they've not taken part in the invasion.
For TomTom users, the location of the item that offers the quest is:
/way Dun Morogh 55.54 37.64 Daily invasion quest item