Game mode idea: Shuffling

I was thinking since I recently hear about the updated "acension" game mode that there could be something like that. I was thinking "What about a face-paced; short game that requires little to no points" Here is what I've though of:

1. No items 2.Every time someone dies their champion changes 3.The objective could be to kill the nexus or get more champion kills in a limited set of time 4.Champions that are re-rolled don't need to be in someone's champion pool That's all I have right now so if you guys have any problems with this idea; comment below I'd like to hear them