Diamante

Diamante is one of the top three Donquixote Pirates officers in the Diamond seat. Said to be the Hero of the Colosseum in Dressrosa, he is the proprietor of the arena. Diamante was the one who taught Trafalgar Law in swordplay.

Diamante also partakes in the competition to see who can win the Flame Flame Fruit. During the course of the contest, he tries to hide the Devil Fruit within the Fighting Fish and saw through Luffy's Lucy disguise. Eventually, the one-legged fighter Kyros defeats Diamante in the flower fields.

Personality
Diamante usually denies anything flattering about himself, until he accepts it as a compliment.

Quotes

 * "Hey... you've got some skill."
 * "Not bad, I must say."
 * "Gah...I've had it..."
 * "What a great honor for you to fight with me!"
 * "You there, you look like you can hold a tune. How about a duet?"
 * "I'm such a fool..."

Fighting Style
Diamante's Devil Fruit, the Hira Hira no Mi allows him to flatten anything he touches at will. He is also known to fight with a rapier. He can also use his cape to shield himself from heavy damage.