its simple, although u dont use it in combat, at a certain point in the game hogsqueal
will be sitting in a tree eating birds in the manor's backyard and he'll trade goblin
teeth for special attacks.

hiya you dont use the teeth in combat. You trade them for better battle skills e.g. attack
two enemies at once, with hogsqueal who is in the birdhouse tree outside the mansion
Hope this helps!

their both right