One of the tallest towers in Ravnica, this impressive structure crackles with the wild power of the Izzet League and serves as their guildhall. Filled with laboratories, testing facilities, and housing for their inventors, Nivix is the center of Izzet innovation. Each floor of the tower houses alchemists, mages and Izzet wise men who theorize, try out and throw constantly miscalculated experiments between rooms. In the highest floor of the tower is Niv-Mizzet's aerie. Even though none of the experiments held in the tower's rooms are linked, Niv considers them a part of a bigger, unique experiment.