This egg is glowing orange, and is engulfed in flames.
Phoenixes are incredibly hot and bright in color. When a Phoenix dies it is consumed in flames, and a new phoenix egg is left in the ashes. Because of their unique pattern of rebirth, phoenixes live for many centuries, and become extremely wise and ancient. As adults, they are beautiful birds with feathers resembling flames, and are extremely adverse to any cold climates. They have incredible mastery over fire, and on a cold winter night will light a magi's fire with nothing more than a glance.