Sorry for this reply but... The only lineup a f2p or low cashing player can maybe have after 8 months of playing (if gets quite lucky in kage treasure and uses all his seal scrolls in jinchuriki treasure) is the han, roshi, mei, azure fang team.

A free to play or low cashing player will never have jonin minato, dbp hidan, hanzo or masked man in less than 1 year without getting a 10k power gap in comparison with his free to play or low cashing rivals (a gap big enough to make those ninjas useless for him in decisive bonds, that's not arena) and will surely never have King of Hell too and those lineups require to get two of them or one of them and one p2w only ninja (like itachi susano'o or hokage tsunade).

I can't believe you don't know this.