Jinx

X is an upcoming champion in League of Legends.

Teaser
Very little is known about the upcoming champion, who signed her name as "X" when she graffiti'd League of Legends page. She is being worked on by Riot Ransom who describes her as having a unique personality and that her hair color is shared by only one other champion (but not Vi or Caitlyn).

Many players speculate that X will be either sister or  nemesis, or perhaps both.