The "better" in your search query likely stems from the history of this specific book. The 4th Edition Ork Codex was notoriously weak, and players often refer to this supplement as the "better" version of that era's rules because it finally made Orks competitive and fun to play.
This 80-page supplement focuses on the rise and campaigns of the legendary Ork Warlord, . It is primarily a resource for hobbyists interested in the narrative history of the Greenskin prophet and his "Great Waaagh!". The "better" in your search query likely stems