In The Witcher 2: Assassins of Kings you play the role of Geralt of Rivia, a witcher with his own background and character.
He is a witcher, a mutant, a professional monster slayer. People seek him for his skills, but he has to get out of their sight when no longer needed. His blades are his lifeline. It's therefore unsurprising that Geralt's ability to wield them is renowned, orand that very few are keen or even willing to risk their lives by engaging him in combat.
Still, the witcher prowess has not led to arrogance. Ultimately, he simply wants to survive while remaining true to his profession.