WWYCD: Super Pets Assemble!
Your character combats an ancient Native American evil spirit and after the first encounter he/she begins to realize that he is getting weaker by the day. After consulting the the tribal medicine man of the closest tribe, he/she is informed that they can draw on the strength of a spirit totem, and that should they come across the help of an animal, perhaps that is their totem and they should not refuse help.
During the climactic battle, your hero is weakening by the moment until sudddenly, an animal arrives on the scene and assists. Coincidence or fate, he's here and the tide of battle is turned. Thereafter, he becomes your crime-fighting sidekick.
What is your new super-pet and what do you decide to call him?