@Riot : why are you forcing people to buy champions that should be all free like in dota with rp?
the higher lvl you have the longer time to get shards for BE if you are lucky enough because lvling 30+ is harder than leveling 5+ so if you want to buy zoe the next champ you will need a lot of time playing + luck
the easiest way is to give Riot your money and buy whatever champ you like in seconds
what a greedy company
its not like you didn't make a lot of money from skins already