The Black Citadel

The process is briefly very painful, but you metamorphose into an Arachnididon (a giant black spider complete with large fangs and poisonous venom). You scurry towards the wilderbeast and before the wilderbeast has a chance to swings its mighty stone hammer on top of your soft hairy body, you rise up on four of your rear legs and sink your fangs into the belly of the wilderbeast. The wilderbeast lets out a roar and drops its hammer. You turn and scurry backwards, and not a moment later your form collapses in on itself and you find yourself back in human form. The wilderbeast is still alive, but is foaming at the mouth.