Wanted: Treasure and Fame
Hounds are ferocious beasts that serve as loyal companions to a wide variety of creatures, often assisting their masters in hunting, tracking, and killing prey.
Monsters of the Shadowfell use these feared hunters to harry the daylit lands, kill hapless travelers, or track impudent heroes. Shadow hounds sometimes slip into the natural world on their own, roving in packs, predating on villages, and foreshadowing death with their baying howls.
When a shadow hound catches the scent of its prey, nothing can discourage it from making the kill. When it eventually finds its prey, it sounds its whispery, hunting bay (causes fear to the person it bays for). They then bite, tear, and flank their opponent, when the option is available, until the hunt is over.