Idea for next year's April Fool's Day celebration: "Totally Unbiased Announcer Voices"
At the beginning of the fight, one team chosen at random is designated as the "favorite" and the announcer immediately makes it obvious who she favors.
"Blue Team, Welcome to Summoner's Rift!"
After a purple team champion gets first blood, you hear "Purple team got lucky!"
When a blue team champion gets a kill, "Purple team champion got wrecked!"
If a purple team champ immediately kills that player, "Worth!"
If Blue team secures Baron, "Blue team establishes their might!" But if purple team gets Dragon or Baron, "Purple team apparently needs to compensate for something!"
and all sorts of other random funny voices. the favorite team would always be random. You might unlock summoner icons for winning as both the favorite and the "underdog."
It'd be hilarious to hear the difference between "AWW YEAH PENTAKILL!" and "sigh Pentakill..."
and since it'd get old pretty fast, a one day only event would be fun.