"Balance"
Is when you can right click on someone and instantly delete them, while having a long-range ability that teleports you to your target and makes you untargetable, a massive heal that reduces all damage taken while it's active, free true damage on every auto, and the ability to remove your one and only weakness for an absurd amount of time.
Seriously, fuck you Riot. I know you're too greedy to actually give a damn about the quality of your game, but even whales fucking hate Yi. So, you might wanna bring him down to reality.