The highest possible Armor Class (AC) represents the peak of a character’s defensibility. In role-playing game systems like Dungeons & Dragons, this value determines how difficult it is for an opponent to successfully land a physical attack. For example, a character with a high value requires an attacker to roll a significantly higher number on their attack die to overcome the defender’s protection.
Achieving the highest defensibility offers substantial advantages. It significantly reduces the frequency of successful enemy attacks, thereby prolonging a character’s survivability in combat encounters. Historically, the pursuit of improved protection has been a central strategic element, influencing equipment choices, skill development, and tactical decision-making. Effective defense is generally the first line to avoid damage on your character in these games.