The process by which a badass becomes less of a badass. This can result in them simply losing more times than they win, being overshadowed by other characters who were once weaker than them, or have less and less opportunities to display their powers due to the changing nature and circumstances of the story, perhaps placing them in situations where their strengths are of little to no use. Compare with Menace Decay, Motive Decay, Villain Decay, What Measure Is a Non-Badass?, and The Worf Effect.