Granted. You gain the ability to control every single champion on the field simultaneously without any difficulty whatsoever. You end up selecting the most advanced, high powered team comps ever in solo queue and win every game you play due to perfect coordination with yourself. Eventually, you begin to get bored of playing even with your friends due to their incompetence relative to your newfound self-made-5mans and toss them to the curb. Matches turn into days which turn into weeks, months, and years. You become an incredible LoL player, but you are arrogant, lonely and friendless. You're doomed to die alone, with nobody for company but the pixelated sprites on your screen.
Then Riot goes out of business and shuts their servers down. You die entirely alone.
I wish the world had ended on December 21st, 2012 (yeah, corrupt THAT)