He probably isn't cheating. Please don't accuse people of hacking/cheating without any actual evidence. It is very possible to farm a great many tokens without spending money...
I'm 99.9% certain that he has simply spent a lot of money on tokens, bought Norgens and power trained them. You can get plenty of free rests every day and top them up with token-bought. These are not scout list players, they're too young and most don't have SA.
If you have evidence of cheating, please report it, but someone having a great team is not evidence.