Trait: Fabled Creature
Fabled Creatures, shortend to 'The Fabled' or simple 'Fabled', have a lot of overlap with Mythical Beasts, with the exception that they "do not make sense" outside the realm of reality. This is for good and for bad, as fabled creatures come from many myths, legends, Aesops, and tales...with terrifying accuracy to what should be imaginary, sometimes petering on the edge of (or even being) a Monstrosity.
A point of difference between an Fabled and a Mythical Beast is that Fabled Creatures may be Rarer than normal, Unique, and/or be modeled very closely after something. Think of it as a 'step up' from them, in the same vein as Devils are to Demon and Seraphs are to Celestial.