[Hill-men of the North] Snow Trolls image - DCI: Last Alliance mod for Medieval II: Total War: Kingdoms

The name refers to the trolls who dwell in the mountains far north in Middle-earth, tamed by the Orcs there and well-adapted to the cold and hostile environment within.
While not as physically robust as their specially-bred kindred from the land of Mordor, these creatures make deadly foes on the battlefield, and cause frightening amounts of damage at close range.
Despite the fact that they bear no armour, their incredibly tough troll-skin is able to withstand tremendous punishment in a fight. This, combined with the devastating weapons that they so effortlessly wield, serves to make Snow Trolls some of the most deadly troops in Middle-earth, capable of smashing apart anything or killing anyone with ease.

Credits:
By Araval, from original troll by glassakias and Louis Lux.