Where are the achievements rito?

Am I the only one that thinks with the new mastery system plus hextech crafting, an achievement system would be awesome!

Just think of all the awesome champion specific achievements to give us dust or mastery points or chests or keys.

This is a great opportunity, just to give an example here's a couple of achieves

The shroud is where the heart is: Akali, Get 3 or more kills while entering or exiting your shroud in the past 2 seconds.

A true Brolaf: Olaf, slow the same enemy (with Undertow) a consecutive 3 times then granting one of your teammates the kill.

Goal!: Lee sin, kick the highest health pool tank into 2 or more enemies.

Give your examples and tell me what you guys think!