I made a spreadsheet to keep track of your tokens to earn for the MSI Pass! :)
Here you go :D The instructions are as follows: Only input your total token count. The formulas should calculate how much you have to earn for the day and the min/max games for ARAM and SR. Because I can't figure out a way to include missions for the min/max games to play or tokens left to earn, it can end up overestimating how much you need to play until you complete the free missions that give up to 300 tokens. The only fix I have for it is if you create another set of columns and you count how many tokens you earn from missions and input those as well. Hope it helps and best of luck! https://docs.google.com/spreadsheets/d/1LGf8iOYthzjZeXBSvMLiV698JQdIlarGpDTVsEs9i0E/edit?usp=sharing
Update: I forgot to put in the correct formula for the Tokens Earned Column, but it is fixed now.