Goku Black uses a Time Ring to follow Future Trunks into the past after a spatial rift is created by the time machine.
In , titled "Goku vs. Black! The Path to the Sealed Future," the central conflict is the first direct confrontation between Son Goku and his mysterious look-alike, Goku Black . Dragon Ball Super Episode 50
During the fight, it is revealed that Goku Black's body adapts and grows stronger by directly experiencing Goku's fighting style and ki . Goku Black uses a Time Ring to follow