A Map of Chance and Luck
The only way to get rid of 'meta' to create a map with designs of randomness(a bit like the river crab). I think a map with no meta, is one of, if not the most desired feature in League of Legends.
There are two variables in League:
- Champions - let it be c
- Boosts - items, Masteries, Runes - let it be variable 'b'.
If you think about it, no matter what, a combination of c and b would always be superior than another combination. Unless there is a 3rd variable in game design, the game would never be meta-free/truly balanced.
Suppose randomness of map is set as 'm'. m could be things like: -a weapon that gains strengh under certain environment of the map -a large/random jungle, such that laning is optional for weak laners -narrowing/widening of lanes such that some champs may benefit, others not so much -a map design that is good/bad for sieging
Now the optimal equal becomes m*(b + c). Since m is 'uncontrollable', optimized b and c would be map dependent, and therefore a true variable. You can pick the champion you want to play, and pick the items that optimizes the map.