Skin Concept: Alter Ekko
This skin is based off an OLD game called Alter Echo
http://static.giantbomb.com/uploads/original/0/1614/1310978-alter_echo_ps2_us.jpg
In this game you controlled a man name Nevin.
http://gamedawgs.com/Image/covers/alter-echo/alter-echo-image818959.jpg
He was a sword user
http://images.eurogamer.net/converted/pics/screenshots/alterecho_ps2/feb031b.jpg/EG11/resize/512x-1
Who was able to control time thanks to the suit that he wore. (mostly to freeze time and attack the enemies)
http://gamedawgs.com/Image/covers/alter-echo/alter-echo-image142672.jpg
Now just image Ekko wearing this suit, not only because of the sword and the time feature fits with Ekko, but that name...Alter Echo....Alter Ekko, it is just to perfect of an name.
Now what about particle effects? Well for Nevin to use his time power, he had to go through a little mini-game.
http://www.videogameszone.de/screenshots/original/2003/10/06sync.jpg
Notice those orange lines? Be perfect for the trail that follows behind Ekko for his Ult.
Would love to hear your thoughts on this...and maybe someone with photoshop or drawing skills to show how Ekko would look in it.