Pixie Shirt

Both pieces come out of Goodie Bags during the Halloween season, which runs off your computer's date rather than world progress. Enemy kills are the only thing that produces bags, so spend the window somewhere with a heavy spawn rate and open the stack afterward.

There is no headpiece here. The set covers the shirt and the pants and leaves your head slot free, which is rarer than it sounds among costume sets and more useful than it looks.

That gap is the point. You can top it with a hat from another set, a mask, or nothing at all and still keep the fairy shape, and your hairstyle stays visible so hair dye actually reads. Everything goes in the social slots, so the armor underneath keeps doing its job.