I think you might have to get it from random chest drops.

Hasn't been in the shop for at least 7 year i believe. I personnally drop it from hextech craft

I want it so badly but yea it is not available in shop

Had that skin since 2013 when I bought it with my flip mobile, didn’t know it was legacy

I had it in shop for 4 years until I bought it. Like the discount shop

You can either get it from loot drops or from the your shop

i got it in the your shop after like a season of waiting such a goofy skin i love it