User blog comment:TheTobarMethod/League System Thoughts/@comment-80.174.244.67-20130203023918

Plus since you assume champions would have "attributtes", you would be heavily penalized/rewarded for playing against the meta. Playing Morg, Ori or GP support, to mention easy examples, would leave your ranking crippled for lower KDA/Gold than the assumed for the champion, and everyone would be fighting over the carry slots (even more than they are now) & picking supports or junglers to trick the system into ranking them higher.

Aaaaand without some kind of "role checker" the whole system wouldn't even work, you're right in that. So it's completely undoable.

Oh, and Janna, precisely Janna, is a terrible example for a high death benchmark. Janna is the goddess of disengages & counter-initiating, and is probably one of the passive supports that dies less, and one of the safest champs in the league. In your magical system, she should have a lower-than-average benchmark.