Talk:Sales/@comment-5794408-20130723003248/@comment-5544574-20130724004442

^ From what I've drawn from the spreadsheet the champion on the sale roster continually is the champion in its respective category (the RP / IP boundaries) that has not been on sale the longest. This has been proven many, many times in succession - the only reason it has been wrong is because said champion is either receiving an upcoming rework (I remember news about Sejuani and Trundle being temporarily removed from the rotation or something) or Riot decided to prioritize a select champion for whatever purpose they please.

Otherwise, it appears to follow the above structure.