You are a dominant being who hosts the power of a powerful godlike elemental being called Eikon. through an act called priming, you can assume the form of your chosen Eikon and unleash its devastating might upon the battlefield, or through semi-priming clad yourself in the power of the Eikon without fully transforming. Either way, because of your nature as a dominant you can instinctively use magics of the same element as your Eikon and have a great affinity for said element.
Eikon can enter an empowered state by absorbing a large amount of magical energy though this tends to make them go berserk, there is also a major drawback as overuse of the Eikon and their power sap the vitality of their user causing their body to slowly crystalize over time as they use more and more power.
you can choose to have your Eikon be one of the existing ones or create your own custom Eikon with one of the 8 original elements