Winter wolf

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

Physical description
It grew to about 8 ft (2.44 meters) in length, 4.5 ft (1.37 m) at the shoulder, and weighed around 450 lbs (204 kg). They usually had blue eyes.

Combat
Winter wolves would encircle their prey and take turns to attack, or attempt to pin it. They could breathe gusts of cold and bite. 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 Giant and Common.