We need the 1v1 features of All Stars Imagine playing 1v1 with the new features, like the sudden death, health pack buff, gold and minion exp changes, etc..  
also with a ladder (or rankeds).   
I remember one year (maybe was in snowdown showdown 2013) when we have a real 1v1 or 2v2 mode, and maps like Magma Chamber. So, why don't riot give us a chance to play this mode again?