Cassius's flame is poisonous and lethal in high doses, though it is likely that the victim will be too severely burned to care about the poison at that stage.

Kidnapped by Soma at a young age, Cassius was torn from his family for ten years until the witch was finally captured and executed. Returning home was hard for him and adjusting to the distrusting glares was even more of a challenge. Eventually, his parents supported his request to leave and find a new start, while still remaining in contact. It was in the South that he found Ghost and with her finally found relief and peace.