Dragon Ball Super #5

A mistake in the Mafuba seal prevented the threat of Goku Black from being ended. When the situation couldn’t be more bleak, Goku Black and present-day Zamas fused using the Potara earrings, creating a much more powerful villain. The only option the warriors seemed to have was to fuse themselves and bring back Vegetto. Now, with Zamas revealing that he possesses a time machine to carry out his plan to eliminate all humans from the past and across all universes, Goku comes up with an idea that could finally change the course of the battle.