Roxie, Winter's Vengeance

•Vigilance
•Pack Bond-If you control another creature with Pack Bond, Roxie gets Frenzy Whenever this creature attacks and isn't blocked, it gets +2/+0 until the end of turn.

The ghost in the tundra; Harsh as a blizzard, fangs colder than the frost, strikes as sudden as an avalanche, her bite cuts deeper than the cold.