Here's a neat easter egg I found
If you destroy the nexus with your team's rift herald. He'll perform a dance, that's hard to describe so I won't even try.
The sad thing is, in order to meet these conditions. You need to be put against a really bad team(We finished the game in 17:41) or with an AFK like my last game.
Do you think I should add this to the trivia?: