Sarquael

Curiously enough, it seems that transactions could possibly be made through emulators already modified to use microG (as per aacprime's instructions, more or less) to bypass the SafetyNet check. Quite possibly lends more credence to the theory that it is SafetyNet, rather than some purposeful action by IS, that is causing this (though of course it could just be both.) Unfortunately, when I made the transition to microG, it was kind of a rush job because I cared more about just getting the game itself to work rather than cleanly ironing out any issues (like not having a working Geocoder because microG is apparently only compatible with Nominatim and that doesn't work, sigh), so trying to actually go through with the transaction just crashed Google Play and then crashed the game. The documentation on getting microG and Google Play Services / IAP to work nicely together is unfortunately very sparse... I'm hoping to test some more on it though, I can at least see the option to make a transaction, unlike on my usual emulator that I do that on (BlueStacks). ...There's also the fact that I use BlueStacks to make transactions because Nox couldn't when I'd tried it way back when, but hey, one step at a time I guess. BlueStacks seriously needs to come with root since it's already an emulator and can't really hide it but lol.