I ask this because i have realised i have mained pretty much every champion in the league at some point or another. 

Certain champions i go back to and have skins for, I cannot play at all any more. At low summoner level i used to main lee sin as a support bot... i bought a skin, and now i know lee sin bot cannot work and i'm stuck with the champ  I suck as both top and jungle xD On the other hand, i bought secret agent miss fortune quite a while ago and mained miss fortune, i then went through a phase of playing on ap's and went back to her and sucked a** but i main her again now because of her lane zoning and DAT ULT LAUGH!!

Who have you mained and could you go back to them again?