1: Introduction - The Evolution of The Undertaker

2: Why WWE Decided to Change The Undertaker's Character

3: The Biker Era - An Unexpected Twist for The Undertaker

4: Exploring The Undertaker's Biker Character

5: The Biker Undertaker's Impact on WWE and Fans

6: Reasons Behind The Undertaker's Return to The Deadman Persona

7: Reestablishing The Deadman - A Phenomenal Comeback

8: The Undertaker's Legacy: The Biker vs. The Deadman

9: Conclusion - The Epic Journey of The Undertaker's Transformations (Note: Each page has a maximum of 35 words)