Purge of the Paragons
This short spear is a terrible weapon against shape shifters, and any being that can alternate its form. Form Bane is a +1 returning, distance throwing, seeking short spear. When a successful attack has been made against a shape shifter, that creature is forced as an immediate action back into it’s natural form (Assuming it was transformed at the time.). It deals double damage against shape shifters. When Form Bane deals damage in combat, the defending target must succeed a DC 15 fortitude save or be polymorphed into a small animal, as of the Baneful Polymorph spell.