The final defeat of Merged Zamasu is finally revealed on "Dragon Ball Super" episode 66 titled "The Climactic Battle! The Miraculous Power of a Relentless Warrior!". The spoilers are here on the former episodes aired, the current as well as the forthcoming episodes.

According to News Everyday, speculations are of the like that in the upcoming episodes, Son Goku's weakness is finally revealed. Also, Vegeta's evil whims are back and having an affect on his family especially the Trunks. It looks like with Trunks popularity in saving the world, Vegeta might get jealous of his son in the forthcoming episodes.

It looks like with the new strength and powers depicted in "Dragon Ball Super", Son Goku was not able to defeat his enemies as reported by GameNGuide.

A great damage was done to Zamasu by Goku's kamehameha, and Goku was still able to defend Zamasu's Gigantic Ball using his kamehameha. Zamasu was badly damaged and in the end Goku uses Kaio-Ken bringing Zamasu to the ground and destroyed halo surrounding him.

After the battle, Zamasu was not healing and Goku was left with a black bruised inside causing him immortal to fade. And, this is when Goku came up with the notion that Vegeta can match the power of Zamasu. At first, Vegeta doubts but later agrees and consume the Senzu bean and wear the Potara earing. As for the Potara, it lasted only for an hour and to his relief they positioned and fueled.

After the battle between and Zamasu, Zamasu remained mortal since Goku Black remains in his body. His plan is now to lock Goku's Black body, and now Goku is attaining strength that surpass all powers of Gods regardless his mortality. There a lot of excitement that comes with Zamasu's transformation, Bulma's arrival on the scene with Mai and the kids.