It's strange how Zamasu and Black are half executed better in the Anime, half executed better in the Manga.
I honestly think it highlights why Super's writing should have been given more time, even though Zamasu and Black are the best part out of it all.
For example, the final battle. Zamasu is weaker in combat, but plays more of a Freeza/Dende role using his abilities from the Manga and healing Black when he's in deep shit. Black uses the weird scythe thingie, but Trunks manages to seal away Zamasu, so Black has to go break him out in which they realize they should fuse. After that point, have the Manga mostly take over, but remove that Hakai shit and find a better way to defeat him. The defusing part with Infinite Zamasu was interesting, but it has the same problem with the other Infinite Zamasu in that there is no reasonable way to defeat him without nuking the timeline at that point, which is lame and delegates the victory just to Zeno.
Freeza got "YOU FOOL", Cell got the Father-Son Kamehameha, Buu got the Spirit Bomb-that-actually-worked-this-once, Zamasu got fucking nothing. A shame.