I will standby the fact that most Zamasu players lose whenever they go to level 4. Its not exactly too useful, level 3 should be the cap unless you managed to whittle them down to just four players. Level 2 is the best form for those able to actually fight. Plus every Zamasu Level 4 is always when the STM is more than 50% done, add in those TWO long transformations it makes level 4 even worse!
I agree. Just last match I managed to get Rosé in about 5 minutes purely by decent luck with civs and downing someone. After that? Hardcamping the last key because I was getting keyrushed, the ST was vanish spamming all over the place and the team failed to gang up on me. Getting Fused by that point would have been suicide, I had to camp that last key *THEN* work on the STM *THEN* hunt down the team and reduce their numbers. *NOW* I can finally get Fused and destroy the STM, *AND EVEN THEN* I couldn't let the last Survivor live because he was gathering souls right in front of me and if he got Vegito *it would have been GGs.* Goku Black needs changes, it's just not fun when you're forced to stick with your current level because you *know* you'll get your ass beat if you evolve, worse than Boly.
It takes time, don't rush things. What I suggest is simply watching gameplays and find your own playstyle, learn new tricks and see how you can use the fighting system to your advantage.