Lore/achievments/discoveries

The idea is simple, as you play the game and accomplish certain activities, you will unlock lore and information no your favorite champs, items, maps and more.

For instance, maxing your feast stacks on could unlock a story surrounding his capture and placement into the league. The first time you buy or you can unlock some of the back story on these items. Taking Baron could reveal some tidbits on it's mysterious back story, approaching the various ruins around both SR, TT and Howling Abyss with various champs could unlock stories of the past in those maps.

Granted, this would take a lot of work, but it would be something Riot could work on in increments, adding new content here and there for the players to try and discover, it would add an element of exploration and would allow Riot to work on the lore a bit at a time and even change it if they need to, calling the old discoveries multiverse legends while revealing new truths about your favorite champ.

Just an idea.