In "The Blue Sword" by Robin McKinley, the character Mathin imparts significant wisdom about combat strategy. He emphasizes the importance of targeting the opponent's sash during a duel. While each blow is marked by the kysin, severing the opponent's sash is deemed the most advantageous move, showcasing a deeper level of skill and precision. Mathin's advice highlights the strategic elements of a confrontation, focusing on achieving victory through clever tactics.

Harry, the protagonist, acknowledges Mathin's counsel and considers the option of unhorsing his opponent first, a tactic that Mathin suggests in passing. This exchange reflects Harry's burgeoning understanding of combat and the nuances involved. The conversation sets the stage for Harry's growth as a fighter, as he learns to balance aggression with strategy, emphasizing the importance of adapting to the challenges faced in battle.