The Legends of Ravnica,
Niv-Mizzet, the Firemind
Leader of the Izzet league, and... IS THAT A DRAGON?!
Shortly after you enter the biggest room within the Izzet league guild hall, you notice two huge glowing golden eyes. As your eyes adjust to the low light in the room, you realize that you are staring at a colossal gold dragon! his eyes look somewhat like pools of molten gold, and his scales look to be made of pure 24 karat. The only reason you believe he is more than a golden idol is because he stirs the air with his breath.
Niv-Mizzet was present during the founding of Ravnica, and has seen to its constant growth ever since. He has been known as the most powerful creature to inhabit the city at all times since, whether such a rumor was true or not at the time. In the twenty-century history of the city, Niv-Mizzet is one of four guild leaders who has been there since the beginning.
Not caring for the laws of the Boros legion, but appreciating the fury behind their enforcement, he has a tenuous relationship with Razia, the Boros archangel. Though neither fully agrees with the means the other uses, they often work together for the betterment of Ravnica and its inhabitants.