Stormraider on Takedowns?
Dealing 30% of a champion's maximum health within 2.5 seconds grants you 40% bonus movement speed and 75% slow resist for 3 seconds (10 second cooldown).
What if the enemy champions has 10% health and you kill them. You wont get the speed boost? Cause I think if you score a kill you should also get boost. Its pretty much how assassins are suppose to benefit from it.
You get a kill then you get the boost to GTFO of there ASAP