 Thematically , Viking metal draws extensively on elements of black metal , but uses pagan and Norse lyrics and imagery instead of those of an anti @-@ Christian or Satanic nature . Viking metal combines the symbolism common in black and death metal , especially the exultation of violence and virility through weapons and battlefields , with a common interest in ancestral roots , especially a pre @-@ Christian heritage , expressed through Viking mythology and imagery of northern landscapes . However , some bands such as <unk> keep the Satanic elements of black metal but sonically are influenced from more recent folk tunes . Visual media such as album art , band photos , website design , and merchandise all highlight the dark and violent outlook of Viking metal lyrics and themes . Authors Simon Trafford and Aleks Pluskowski note that the album sleeves on works by Viking metal artists are frequently decorated with Viking Age archeological finds : Thor 's hammers are especially common , but other artifacts such as Oseberg posts and even the Sutton Hoo helmet have appeared . Some bands incorporate far more ancient , pre @-@ medieval imagery , such as the Finnish band Moonsorrow 's use of prehistoric rock carvings and megaliths . Other Finnish bands , such as Ensiferum , Turisas , and Korpiklaani , focus on Sami traditions and shamanism , further stretching the definition of Viking metal . 
