Vairys' Hound

A large purple mastiff appears in a spot that you choose withing 30 ft of you. As a bonus action on your turn, you can have this dog make a bite attack doing 1d12 force damage. If you have a piece of equipment that has the scent of a creature, you can have this dog track them flawlessly for the duration while they are within 1 mile. This hound can travel 120 ft. from you and has a movement of 60 ft. You can move the hound with a free action. This hound does get attacks of opportunity.

For every level above 2nd, this spell deals an extra 1d12 force damage