Rob Lucci's initial Vivre Card has been changed from Learned Haki to strengthened Haki related to Rokushiki : r/OnePiece

Chapter Discussion - Rokushiki is based on Haki, Page 5

Chapter Discussion - Rokushiki is based on Haki, Page 5

List of One Piece characters - Wikipedia

How does Rob Lucci compare to other One Piece characters? - Quora

In One Piece, why do the members of CP9 learn to use the “six

Piece Out! Managing Power Creep in 'One Piece' : r/OnePiece

Discussion - Vivre Card: One Piece Visual Dictionary

Why can't Luffy use the 5th gear for a long time? - Quora

What are some misconceptions about the series, besides obvious

Artur - Library of Ohara on X: Official Vivre Card Correction

What power is it? : r/OnePiece

In One Piece, why do the members of CP9 learn to use the “six

Rokushiki, One Piece Wiki