There aren't any tanks from Piltover
There are tanks from every place, except Piltover. There are tanks from Demacia (
), Noxus (
), Zaun (
), Ionia (
), Shurima (
), Void (
), Shadow Isles (
), Bilgewater (
and Tham Kench, which doesn't yet have an icon), Bandle City (
- although one can argue that Amumu is from Shurima and that he is a human child, not a yordle, making Bandle City another place without a tank) and even Mount Targon (
)
There is even a tank without a specific place (
). But no tanks from Piltover. I hope that Riot is planning one for a future release; something like a mecha tank, but unlike Blitz, something that isn't steam-powered, rather, something more High Tech, like the Mecha skins.
The closest thing we have to a tank from Piltover is 
, but she is not a tank, she is a Fighter. She can be built as a tank, but she doesn't have the disruption, base stats, and even model size from tanks like the aforementioned champions. She is a bruiser, and is better built as one.
