With a code "AGL One Shot" you can register a game between two players. It's like a tournament, but with one game and two participants only. You buy the code on the CorvusBelli website and register it in the OTM.
With this code you can report a single Aristeia! game, is like to report a tournament but for only two player and one game and with a low K (the factor that affects the ELO). Is an option to participate on the AGL and unlock archivements if you dont have the possibility to participate on a tournament ;) Here you have the link: https://store.corvusbelli.com/products/agl/CBARI32-agl-one-shot-virtual
@HellLois Should I understand then that AGL One Shot is separate from AGL seasons one or two for which I have already received codes by purchasing the respective kits. I see from the link that the cost is only 1.5 Euro. I assume then that the code is good for one game only hence the name One Shot. For those outside the Euro economic zone it would make sense to purchase then bundles of 10 or twenty considering the fees for exchanging currency.
Yep, just for one game. Still counts as a Season 2 game, just at a lower K score as HellLois mentioned. Buying in bulk is up to you :)