If not, is there an easy list to know which ones were sold for gold (so I know which ones not to get my hopes up about)? I mean, marid was added to the divine humanoid pet table (e.g. you can get this by luck when fusing to a humanoid divine), added to the table for “legendary pet skin”, and has been part of previous mystery boxes.
There’s also a bunch of random oddities in the pet wardrobe (mostly under ???) that I haven’t seen in a mystery box. That very well may be 'cause I am currently/still F2P and don’t have much of a reason to check the store out, except for the occasional fame box, but… yeah.