So I tried the new Stormraider's Surge on Ekko Today...
The amount of Movement Speed you get between his Passive and Stormraider's is hilariously insane. Late game you're clocking in at around 900 MS per proc. Takes running circles around the ememy to a whole new level. I don't know if it's worth it over Thunderlords, but man it is the closest you're going to get to "gotta go fast" in League.
Tip: Ahri makes your life hell. That slow resistance works on her charm, you just run towards her crazy fast.
"I'm runnin' circles around ya!"
or
. They zoom off like team rocket into the sunset.
+ 
FEARS YOU AND YOU RUN THE WHOLE WAY BACK TO YOUR BASE.
"Nothing will escape."
YOUR JUST SLOW!


Stormraider's Surge and Movespeed Quints.