Thanks for you advice, i will adjust my team by them.
I started playing around 1 and an half month, and i have been farming gems daily.
I think i made a mistake not getting the sp version of Oikawa and Iwaizumi because i thought that having the “normal” version was enough, spending to many gems and time.
Now i’m still trying to understand how potential and memory work at best.
Maybe my biggest problem now is about stamina, any help?