Complex sentence: In "Bully for You" Gordon transformed into Culebra to regain Swinton's confidence but when the Culebra returned Swinton regained his confidence, defeated Culebra and withdrawn by Emperor Gorganus.
Split into simpler sentences: In "Bully for You" Gordon transformed into Culebra to regain Swinton's confidence. But when the Culebra returned, Swinton regained his confidence and defeated Culebra who was withdrawn by Emperor Gorganus.