Drawing Erebus' eye on Igneous is actually super unsettling '

Erebus can change their shape, like most changelings, but doesn’t usually shift for fun as some do. Instead, Erebus has been known (only by their family) to take the form of loved ones who have passed on, especially when they struggle with grief. They always keep their actions respectful, and simply give the heartbroken pony a chance to say the things they might not have been able to before their loved one moved on. For some, it helps immensely. Others, not so much. There is only one departed soul that Erebus can't bring themselves to shift into: Granny Smith.