For me it would probably be either Pax Jax or Championship Thresh.
I love my Pax Jax skin. Favorite one in game. --- Rick and Morty is simply the greatest animated show out. Please give it a shot. I can't praise it enough. http://i.imgur.com/5OTt2d7.gif
#2Empress_BowserPosted 5/12/2014 4:30:09 PM
Riot Blitz I think, got it through mystery gift after it was unavailable --- Like the moon over the day my genius and brawn are lost on these fools. ~Bowser
#3Geminia999Posted 5/12/2014 4:31:10 PM
Riot Girl Tristana
But seriously, only ones I have are ones that money can buy :/ But then I guess Tyrant Swain. --- [::[_]::]Common sense [+[_]::]just because you can doesn't mean you should
#4Brady672_AT_fanPosted 5/12/2014 4:32:31 PM
Definitely Not Blitzcrank which was gifted to me. --- 3DS FC: 1375-7273-8593; X/Y FS: Gyarados, Octilary, Frogadier
#5Two_DeePosted 5/12/2014 4:35:44 PM
Badger Teemo --- I send a heart to all my dearies When your life is so, so dreary, dream
#6Essam-SamPosted 5/12/2014 4:39:29 PM
--- "Greatness From Small Beginings"
#7MegaSlimePosted 5/12/2014 4:40:01 PM
Championship Riven --- "Why is it whenever someone says 'with all due respect' they really mean 'kiss my ass'?"-Ashley, Mass Effect High School Relationships: 99.9% Failure
#8KajeIPosted 5/12/2014 4:40:07 PM
Championship Riven i think. --- I laugh as I watch people ignore the past, lie about the present, and misrepresent the future.
#9Thalandor46Posted 5/12/2014 4:43:46 PM
I have Riot Singed, Riot Nasus, and PAX Sivir, and a number of more recent ones. Dunno which one of those is the rarest. --- "as i fight, she watch me. so i pray, never to forget...that being Meguca was suffering!" -Hameru
#10ShadosAtPhoenixPosted 5/12/2014 4:45:27 PM
I have all of the PAX skins except for Pax Twisted Fate (I wasn't playing League when they were giving them away and thus didn't pick one up... FML).
Pax Sivir and Pax Jax I did get anyway, even though I wasn't playing, just in case, and sat at the bottom of a drawer for a very long time. Good thing they didn't have the 5 day time limit on them back then as they do now :)