Goku Black (LOTSG)

The entity known as Goku Black is an extremely powerful evil being from Future Trunks' time and physically looks identical to Son Goku.

Power
Goku Black has an incredible amount of power; in his base state he can match Super Saiyan Beyond God 2 Goku while also fighting against a Time Portal's pull. Son Goku even claimed that Black was equal to his Super Saiyan Beyond God 3 state after their fight.

Upon returning to the future and assimilating Goku's fighting style Black's power increased an unknown degree, and later fought Super Saiyan God Vegeta in his base state, however, he was unable to match the Saiyan Prince.

Black is able to assume his own godly Super Saiyan form that he refers to as Super Saiyan Rose, which granted him enough power to defeat Super Saiyan God Goku and Vegeta, Penultimate Super Saiyan Future Trunks, and Super Saiyan Beyond God 2 Gohan one after another.

Goku Black was also able to match Super Saiyan God Kaestos, however, he and Future Zamasu were unable to match Super Saiyan God 2 Kaestos, who dominated the fight against the two for some time until being forced to retreat.

Transformations

 * Super Saiyan Rose - Goku Black can enter this transformation, which holds God Ki and a pink aura and hair. This transformation is incredibly powerful and it's power enhancement is equal to Super Saiyan God. Using this form Black was able to defeat Super Saiyan God Goku and Vegeta, Penultimate Super Saiyan Trunks, and Super Saiyan Beyond God 2 Gohan one after the other. Goku Black is able to equal Super Saiyan God Kaestos  in this form.