Still havent got my mystery skin

Cool story.

You mean champion?

i own all the champions. Which is supposed to unlock me a mystery skin

You won't be getting one probably.

http://boards.na.leagueoflegends.com/en/c/miscellaneous/XEYwv2gh-why-do-we-get-penalized-for-dodging-a-troll

If you were under a punishment for Leaverbuster or chat bans you don't get one.

i wasnt though XD I got the icon already, just no skin

Same here. Got all champs, never got a single punishment or a single warning since at least two years, already have the icon but still no skin.