While on a loading screen for a game, a tip said that only 120 champions have been picked in wolds from 2011-2016. There is a total of 135 champions in league, so who hasn't been picked. Now I know there were fewer champions during the 2016 worlds, but I doubt 15 champions have been released since then.
Zed genius1 voteswell I doubt ornn has been picked yet
BeatzBoyFTW1 votesHe's disabled for Worlds.
Sioxor1 votesThis is not accurate but if I were to guess from what I have seen in worlds over the years...
JavelinJoe1 votesI am fairly sure Teemo was and I would be very surprised if Eve, Tryndamere, Swain, Shaco and Lux have never been. Ornn is disabled so of course he has not been played.
esmelar2 votesActually Rammus was picked in the 2014 World FInals, so you can remove him.
GeminiRune1 votesAmumu and Lux were in S2 Eve was definitely by Clearlove Fiddle was by Insec in S4 Garen was S1 Ornn is disabled - doesn't count Trynd, Xin, Teemo and Aatrox all S3 Rammus in S4 Swain in S1
Shaco and Heimer, unless I overlooked something in S2 have ever seen the stage.
Sioxor1 votesahh actually maybe volibear
BeatzBoyFTW1 votes
Even reworked Urgot gets played first.
ShiroTheHeroine1 votesyorick was a powerhouse in season 2
GeminiRune1 votesI did the research for this one because I was quite curious.
With the exception of 
as he is disabled for this current Worlds, the following have never been played:
Special mention goes to 
who has only made 1 Worlds appearance way back in Season 1 and is probably the worst competitive Champion....ever....
MysterQ1 votesI remember Iliaoi on the international scene though. People were like Koreans don't know what she does!!
GeminiRune1 votesIllaoi has been in an All Star Event, not a WC from what I dug up
