Viking Thralls are enemies in the Tomb Raider Series. They were used by Thor to guard Mjölnir and Midgard Serpent in Helheim . Viking Thralls were created when a Viking person touches/falls into Eitr.
Viking Thralls are essentially 'zombie' Viking people. They have a tattered, dull grey/blue appearance. They have orange/brown eyes and when shot, they emit blue 'clouds'. They wear helmets and armour on their arms and torso. They wear long boots.
Viking Thralls go for a kill first, think later approach. They will charge and hit Lara knocking her over. Mjölnir is very effective against them being able to take one down in one shot. Adrenaline Headshots can kill a Viking Thrall in one shot as can sticky grenades. Once a Viking Thrall is down be sure to "stomp them, destoying their skeletons and killing them permanently. (If one of them is destroyed by the headshot or sticky grenade or Mjölnir or get killed via Shadow Strike, it smashes the skeleton automatically, so no need to stomp.) Viking Thralls are similar to the Mayan Thralls and Knight Thralls.