Polymorphidae

Polymorphidae are what we commonly call shape-shifters. They are beings that have more than one definitive form and can move between them fluidly. We are familiar with the notion of shifters from human folklore and literature, but polymorphidae often don’t fit with the image we gave them. For example, many assume that polymorphidae have one ‘true-form’ from which they shift, but that is not the case. All the forms a polymorphidae magion can take are natural to them. They may have a preference to one, but that is a personal choice that is not rooted in the species.
Magions in this group are born with the ability to change form, and this ability is usually innate from birth. Furthermore, the change affects their form only and, while senses or abilities might change with the physical appearance, their mind remains the same in all forms.
There are two main types of Polymorphidae shape-shifting, Corporeus, or physical shifting, in which the body itself shifts and changes magically, retaining its mass and some physical traits, and Arcānus, or arcane shifting, in which a discontinuity of mass is possible between the forms.