What chamions havent had a skin in X amount of Time?
I know cass is one of them who are the others that have not gotten any.
I know cass is one of them who are the others that have not gotten any.
since release

Those two have a few skins, but haven't got a new one in ages.
Kog'Maw hasn't got a skin for more than a year.
has not had a skin of Imperial (1350 RP) value or higher since his release when League of Legends was created.
That's right, he's one of the first 40 champions in League and has only skins of Epic (975 RP) value or less.
Cass hasn't had a single skin in 1371 days so far, that's over 3 years and 9 months.
Still waiting for Riot to actually give a damn about her.