Winter wolf

A winter wolf was more akin to a worg than an actual wolf, being of wicked intelligence and cunning.

Description
It grew to about 8 ft (2.4 m) in length, 4.5 ft (1.4 m) at the shoulder, and weighed around 450 lb (204 kg). They usually had blue eyes.

Combat
Using their fur as camouflage, winter wolves would lay in wait for prey. When an ambush was triggered, winter wolves would encircle their prey and take turns to attack, or attempt to pin it. They could breathe gusts of cold as well as bite their victims. They could also trip their enemies. They were immune to cold and cold magic, but were vulnerable to fire.

Society
Winter wolves lived in packs of around three to five, sometimes found as allies and guardians of frost giants, white dragons, and other evil arctic beings. They spoke their own language, Winter Wolf, as well as Giant and Common.