What i did to help teams in my league, and not become totaly overpowered, since my entire team is 6 star and all have specialy ability, and i even have a few 7 stars players. I buy 6 star player, and put it on the transfer market. This way i can make it a little more fair for other team, but u gotta keep in mind, if i spend real money to get stuff, players, kits or anything, i do that for myself, im not spending lots of real money to help all other teams, but i am willing to help other teams, by letting them buy some of the very good players that i put on the transfer market.