Hi all! I started learning Niagara recently and created this as a project, just for practice. It was actually a really good exercise to learn how the emitters work, and also discovered details in this effect that I did not see before. Mine is not 100% accurate still, but this is where I got. The effects of this skin always make me happy when I play LoL, so this was a fun project. 
If you have any feedback or questions, I would be happy to read it. Thank you to the people on Discord for answering my nooby Niagara questions!
GIF (sorry, had to lower quality a lot)
Video
Original Effect
http://www.youtube.com/watch?v=DZ1el_4RwFI&t=1m39s