Diamante

Diamante (ディアマンテ) is a major antagonist in One Piece, affiliated with the Donquixote Pirates as one of their top executives, holding the "Diamond" seat. He is also the proprietor of the Corrida Colosseum, boasting the title of "Hero of the Colosseum." Diamante possesses the "Hira Hira no Mi" Devil Fruit ability, which allows him to manipulate objects like flags, and can alter their hardness. He is arrogant, cruel, and craves praise, often feigning humility before accepting compliments with greater arrogance. Diamante plays a significant antagonist role in the Dressrosa Arc, directly responsible for the tragedies involving Rebecca and her mother, Scarlett. He is skilled in swordsmanship, having been Trafalgar Law's swordsmanship instructor. Loyal to Doflamingo and his crew, Diamante is a formidable and sadistic opponent.