Yeah, they've really invented an incredible style with this one.
This is kind of in the same vein, it's a little known demo from a band called Jotunheim called Høght Blæsir Heimdallr.
Here's a link to the album: https://www.youtube.com/watch?v=I6_NokpJfNQ
Jotunheim - Høght Blæsir Heimdallr
https://www.youtube.com/watch?v=I6_NokpJfNQ
Decent Black/Folk metal from Sweden. Pretty raw because it's a demo but it's quality stuff. Check out the second track, Høght Blæsir Heimdallr (Ragnarökr I).
Don't know about Satyricon but I know Emperor has sold around .5 million record, which IMO is pretty significant for a black metal band barring sellouts like Cradle of Filth