Balacgos's Bane is a cerulean cube created by the ancient blue dragon, Balacgos. Balacgos created the cube to deal with the unharnessed latent magic energy found throughout Azeroth, in an effort to keep it out of the hands of undisciplined practitioners of the arcane. The cube was designed to absorb such magic and hold it in reserve till a time the blue dragonflight had need of it. But Balacgos miscalculated and upon activating the device it absorbed his magic, leaving the dragon a lifeless husk.