well , 1 good strategy is to reroll the account at the begining a couple times till you roll a black or good plat from your first 2-3 rolls ( getting 10-15 sc at the begining is rather easy. You just have to 3 star the first missions )


If you dont get a good unit , just make another account.

As a rule of thumb , any plat princess , mage , soldier are pretty good units. Getting a black at start is even better. For example , my first account is a non black (other then the event/trading post units) account. I have completed every event till now without an issue.



My second account got a first roll nanaly (i didn't rerolled for it. i got straight up lucky) , and then i decided to trow a couple bucks in it , and got 2 more blacks.


Blacks can and will make your gameplay easier , but the truth is that 99% of this game can be completed with silver/event units.




In the end its up to you , but if you feel that you were unlucky , you can do as i did and try to make a new account. I ended up playing on both. First one for the challenge , and the second one for fun. I also get to experience different units and use different strategies and that can give you some insight into what is good and what is not...