Former Enron Corp. Chief Executive Jeffrey Skilling hasn’t run away from a fight yet, and he’s not about to start.

The 52-year-old one-time corporate celebrity embodied confidence at the helm of the company once lauded for innovation and creativity before it crashed in scandal a few months after his abrupt resignation. That confidence remains as he prepares for the main event in the fight of his life: testifying in his own defense at his fraud and conspiracy trial.