Future Trunks was very surprised when Goku Black showed up in the past, intent on finishing their battle. However, with two Super Saiyan Gods present, does Goku Black really stand a chance? Previously in his spar with Goku, it was revealed that Trunks had reached Super Saiyan 2, and indication that the mysterious Goku Black must at the very least, be stronger than this level or power. However, when Goku went SSJ 3, Trunks was visibly surprised and commented that Goku was way more powerful than Black Goku. Keep in mind, Goku still has Super Saiyan Blue and Super Saiyan Blue Kaio-ken up his sleeve, which in theory, should make short work of Goku Black. Yet, when the two fought, it seemed that Goku Black's power level rose in respond to Goku's. Is there some sort of mysterious link between the two that will allow Black to tap into Goku's power level? If so, it probably isn't the best idea for Goku to be the one who takes him down. Perhaps Vegeta will finally get his chance to kill "Goku"?
Dragon Ball Super Arcs
Battle of Gods arc | episodes 1-14
Resurrection of 'F' arc | episodes 15-27
Universe 6 arc | episodes 28-46
Future Trunks arc | episode 47-ongoing