A Wyrd is a self-sustaining Element of Energy that is created by, and exists within, a living being.
Wyrds can form spontaneously within a creature in places of high AMP Aura. A Wyrd might also split from parent to child, or even move completely from one creature to another.
Wyrds are rare. In many cultures they are totally unknown and in many others they are misidentified as a supernatural phenomenon or ability.
Wyrds most often expand to fill the entirety of their host, taking on the host's form in the process. But in order for a single Element to reach these sizes, an Amplification much higher than most places have is required. So a Wyrd relies on the heat and movement of it's host to fuel a Sphere around itself.
It's possible for a Wyrd to take a form totally different than the host or remain amorphous so long as a majority of the Wyrd remains inside the host.
Even among those that have Wyrds, many will live unaware of it's presence. Because they are made from Energy, Wyrds excel at manipulating it. Those that are aware of their Wyrd through training, natural talent or even random chance can learn to control it - and subsequently the Energy around them - as though it were any standard part of themselves.