Random Teambuilder champion select.
-So you know the lane you want to do. -Might even know what type (fighter,assassin,tank) -But you dont know what champion you want to play.
Here are my thoughts on what might be a solution. use the same setup as the create custom item set. but instead it has you pick a catagory so per say i select top -i get to pick all my top lane champions and put them in this "folder" then when i hit random in teambuilder it will choose one of those champions, this makes it so you wont get champions from wrong lanes or that your bad at but still random enough to make it interesting. -for the next step would be a sub folder so after top i could choose to pick fighter then it would only pick random top fighters and leave out all the others