That's like asking why they didnt call Ryze, Rise. Firstly I feel atleast that It's more phonetically pleasing to read and say. And secondly I'm pretty sure they didnt want his name to confuse in anyway with Jinx or somthing cant confirm this atm cause im to lazy to search.
<AlphasoniK> Kristis: What the fuck is wrong with you, rainbow loving panda freak.
Seriously, try to piss standing up for a change. No life girly pants dimwit.