Fun fact: “shape-shifting” as a term did not exist until very recently, mostly thanks to popular culture. Before then, each group of shape-changing folks simply went by their titles (e.g. Selkie, Wulver, etc.).

Let it never be said that those among the Mythos are not affected by the Ever-Dying.

Shape-shifting usually applies to animal-humanoid transformation, and comes in three flavors:

  1. Made shape-shifters. These are beings who are cursed or spelled with the ability to transform into something else.
  2. Born shape-shifters. These are broken into two categories:
    1. Removable skin. Selkies and Sinaa fall into this category.
    2. Non-removable skin. Wulvers and Zimwi fall into this category.

There are various shape-shifting group among most of the Seven Peoples, and their cultures tend to be built around their abilities. For the record, that can happen. Shape-shifting Kin rarely retain the ability to transform past the second or third generation.