Whenever I listen to Mr. Roboto as of recent, and believe me I have quite a few times, I mostly think of Viktor.
The song doesn't match up with his lore to a tee at all, but for some reason my mind still jumps to Vik every time I hear it.
. Its a bit light for fiddles, but I started playing league when this album had just came out.. yep I have been playing that long.
https://www.youtube.com/watch?v=EAwWPadFsOA
blast this shit while you're playing riven and i guarantee it will make u play better
or, you know, get cocky and feed, but that's what you're supposed to do as riven anyways
https://www.youtube.com/embed/fL1VnXIAEUg
Pretty self explanatory, I think. ^^
As for a real song though, I like pairing 
(Omega Squad) with
(Name is Disciplined Breakdown -- fits his whole mental breakdown theme with Omega Squad)
https://www.youtube.com/watch?v=dG7Rl3qxUqY
Because if you play either of those right, your fingers will break
Tsubasa for everyones favorite goat mom. https://m.youtube.com/watch?list=LLRhrBlhLIjolhZTmPtAwNMA&v=MCk43XxCw-k
