Fetchlings are a race descended from humans who had been trapped on the shadow plane, and therefore they have some unique darkness- and shadow-focused abilities. At first, fetchlings seem very similar to wayangs in this way, but the abilities of both races are actually quite distinct.
Ability Scores: +2 Dexterity, +2 Charisma, -2 Wisdom. These bonuses and penalties make fetchlings excellent as Ninjas and spontaneous casters, but they aren’t really made for prepared divine casters.
Type: Fetchlings are outsiders with the native subtype, which means that, just like aasimar and tieflings, they can’t be affected by spells specifically affecting humanoids, like enlarge person. This can be a huge detriment to buffing, but they also aren’t affected by things like charm person, so it can also be a boon.
Size: Fetchlings are the same size as humans.
Speed: Fetchlings move the same speed as humans.
Shadow Blending: This is a peculiar ability that will definitely come in handy for any character. In dim light, instead of the normal 20% miss chance, your enemies will have a 50% chance of missing you. This does not, however, equate to full concealment, so you still can’t do things like deal sneak attack damage just because you’re in dim light. Overall, though, this is a