Kol-Raiders
A variant of raiders that specifically hunt wolves and really love using fire. From what I can find, Kol loosely means coal or dark, typically used to describe a feature like hair. Used as a name, it is associated with strength. So "Kol-Raiders" could theoretically be called "Strong-Raiders" or, and I really like the sound of this, "Dark-Raiders." I'm going to take a guess that if there was any thought in using Kol in their name, it was to describe them as being the darker, more evil counterpart of the regular Midgardian Raiders.
Kol-Raider Scout
For comparison, I have the regular Raider Scout on the left. They're both literally darker, using blacks and blues for paint instead of reds and whites, but also stylistically darker, appearing more like fierce warriors than survivors of Fimbulwinter. The differences combat-wise with these two are sparse, though. Kol-Raiders Scouts create a pool of fire with their sling shots instead of just setting you on fire like the Raider Scout.
Finally, it's important to note that all of them will set themselves on fire after being defeated to bring themselves with you. I can't find anything about Norse tradition specifically relating to self-immolation. Though there is a classical Viking burial, burning was associated with both transformation and purification. Alternatively, they're just burning themselves so they don't rise as Hel-Raiders.












