"much versed in black magic FOR FUCK'S SAKE WHAT KIND OF VIKING ARE YOU"
I'm sorry I've dissapointed you
"han var" is swedish (but several other nordic languages aswell), "mjok fjolkunnigr" definitely isn't swedish
sorry, barely listen to swedish music and don't listen to stuff similar to those bands at all, so I'm not able to help you there
Isn´t fjolkunnigr Thor´s hammer?
Best nordic band I´ve heard is "Sonata Arctica". They´re finnish but whatevs.