what if we picked our runes as the game progressed instead of pregame?

It would add another layer of building/counter building

Grab a rune every three levels

keystone full rework,

"But keystones open new playstyles" NO THAT'S HORSE SHIT! You can't go grasp on zed, you can only go one of the two burst runes on zed for effective use. Things like electrocute and dark harvest are redundant at that point and could be worked into a solitary rune, at levels 3,6,9,12,15,18 we could get a rune choice, just a pop up tab.

Getting poked out by a ranged champ? grab bone plating.

it just seems better that way, less hard counter more thoughtful