1. Supreme Haki Mastery:
* Conqueror's Haki: Roger possessed the most powerful Conqueror's Haki ever seen, able to knock out entire fleets of enemies with a single wave of his hand. He was the only pirate to ever use it to conquer the Grand Line.
* Armament Haki: Roger wielded Armament Haki with incredible proficiency, capable of clashing blows with the likes of Whitebeard. He also likely used it to coat his sword, enhancing its power and ability to penetrate defenses.
* Observation Haki: It's implied that Roger possessed advanced Observation Haki, allowing him to predict his opponents' moves and anticipate threats.
2. Legendary Swordsmanship:
* Ace of Spades (Aokigahara) Swordsmanship Style: Roger's swordsmanship was legendary. He wielded the legendary sword "Ace of Spades" (Aokigahara) with incredible skill, and his style is known as the "Aokigahara" style. This style has not been fully revealed, but it's known to be incredibly powerful.
3. Physical Strength and Endurance:
* Exceptional Physical Prowess: Roger was immensely strong and durable, able to withstand attacks from powerful opponents like Whitebeard. He possessed extraordinary physical strength, agility, and stamina.
4. Leadership and Charisma:
* The King of the Pirates: Roger was a charismatic and inspiring leader, able to unite a crew of incredibly strong and diverse individuals. His leadership and charisma helped him gather the best pirates and navigate the treacherous waters of the Grand Line.
5. The Will of D:
* The "D" in His Name: Roger, like many other prominent characters, carries the "D" in his name, which holds great significance in the One Piece world. The "D" seems to be linked to a lineage of freedom fighters and rebels, imbued with a powerful will to fight for their beliefs.
6. Unfathomable Strength:
* The "King of the Pirates" Title: Roger earned the title of "King of the Pirates" by conquering the Grand Line and finding the legendary treasure, One Piece. This feat alone speaks volumes about his incredible strength and power.
While Roger's specific powers remain shrouded in mystery, his legacy continues to inspire and challenge countless pirates. His influence on the world of One Piece is undeniable, and he remains a symbol of freedom, adventure, and the relentless pursuit of one's dreams.