Black Smoke Shenron

Black Smoke Shenron appears during the final saga of Dragon Ball GT, manifesting when the Z Fighters attempt to use the Dragon Balls to undo the damage caused by Super 17. Over the course of the series, the Dragon Balls have been used repeatedly, and each wish generates a small amount of negative energy that builds up within the balls over time.

When the accumulated negativity reaches a critical point, Black Smoke Shenron is summoned instead of the regular Shenron. He is a dark, menacing dragon made of black smoke, a stark contrast to the golden Shenron that normally appears. Rather than granting a wish, he announces that the Dragon Balls have become corrupted beyond use.

Black Smoke Shenron then divides himself into seven individual Shadow Dragons, each one inhabiting a different Dragon Ball. These Shadow Dragons scatter across the Earth, and Goku and Pan must track down and defeat each one. The Shadow Dragons range from relatively weak (Haze Shenron) to extraordinarily powerful (Syn Shenron, who later becomes Omega Shenron). The existence of Black Smoke Shenron serves as a warning about the consequences of relying too heavily on the Dragon Balls.