Update: Looks like Torna the Golden Country's physical version is a proper cartridge release after all

[FarleyMcFirefly]

To sell a "physical" version without an actual cartridge would be one of the stupidest things ever.

It says you can play the prequel story without owning Xenoblade 2, so logically it comes with its own cartridge. If I'm wrong, then I will say "Fuck you, Nintendo".