Help me choose a champion for best results and how to adjust for a champion pl

pick kog'maw and ban ashe+senna

cassiopeia kogmaw

If you want to lean Mekaniks and impro in that way 1st go play Adc- U will learn a lot for a lot champs mekanikal whise Possitioning+Kiting etc. Play Sup+Jngl for Gameknowledge. Top+Mid for Map Playing/Pressure and if u want Champ Virioty play just 1 Lane and Chose Champs which have diffrent kits like Bruiser+Roamer+Stomper+Lategame like this.