I have good(not very) ideea

How about banning items? like 3-5 bans per team but for items for items jsut imagine a match where cant get rageblade where [insert adc here] cant buy blodthirster or ga,where mages cant get they'r nuuh button aka zhonia wat wonderfull world it would be whytout deat's dance or trinity,where people have to adapt a little and not jsut build the same thing over and over and over