As an action, you can create a vial of liquid that smells of a certain creature. When you create this concoction choose claws, fangs, spines, horns, or a different natural weapon. Some examples could be that hands turn into claws, two teeth turn into tusks, or a whip-like tail is grown. A creature can drink the contents as an action to grow the chosen natural weapons. Its unarmed strikes that it is proficient with deal 1d6 bludgeoning, piercing, or slashing damage, as appropriate to the natural weapon you chose.
Its unarmed strikes become magical, if they aren’t already.