Say hello to my Draugr army, the walking dead.
Each of them have the strength of 10 men. While they all actually weigh no more than a human man, they can swell themselves to weigh a ton crushing enemies beneath them. They are able to gather a heavy fog about them, the unnatural fog proceeds them making them hard targets. Being dead, they cannot die. Inside of them burns a cold fire causing their eyes to glow red. They desire the warmth of the living. They are considered evil.
There are only two ways to defeat them.