Fleurety - Min Tid Skal Komme
Sigh - Scorn Defeat, Infidel Art, Ghastly Funeral Theater, Hail Horror Hail
Graveland - Following the Voice of Blood and Thousand Swords
Hate Forest - Battlefields
Helheim - Av Norron Aett
Hades - The Dawn of the Dying Sun
A bunch of those aren't considered "grim", but they all rule muchly, and you'll thank me once you hear them.