User blog comment:Alartan/IP - are influence points a problem?/@comment-24420226-20150410212806/@comment-26169513-20150413181749

also the weekly champions are not able to be used in ranked games. so yes you do not have to get all of the champions but you will if you want to use what ever in solo que. also have you ever looked not all champs are in the weekly rotation. when was the last time you seen yorick in the rotation???? last time i looked on the wiki it was season 2 he was in the rotation.