Today's daily assignment, 5 Feb 2018, you need to defeat a Sand Swirler in the Rubal Wastes. I searched all the the Rubal Wastes and did not see any Swirlers. I checked with some other players in the Wastes and they could not find them either.
Does anyone know where to find the Sand Swirlers, not the Desert Swirler.
I had the same experience. Six or seven of us were searching with no luck. One said they were to be found right at the start of new world but wasn't clear whether that meant at start of Mirage or at start of Rubal Waste. Either way, I couldn't find them so still no clue. Hope someone comes up with an answer.