In the perilous realms of Dungeons & Dragons, your Armor Class (AC) is more than just a number—it's your character's first line of defense against the claws, swords, and spells of those who would do them harm. Boosting your AC can mean the difference between a glorious victory and a tragic demise. Whether you're a mighty warrior clad in armor or a nimble rogue darting through the shadows, understanding how to maximize your AC is crucial. This topic has been on my mind recently as I am currently playing a Ranger in my group’s main campaign. Rangers often rely on not getting too involved with the melee, using distance as a form of AC. However, this isn’t always an achievable tactic. This guide will cover a comprehensive range of strategies to bolster your defenses, including feats, stats, traits, spells, class abilities, and racial bonuses, tailored to each of the main classes. While not exhaustive, this guide should provide the squishiest of characters a few options to improve their AC.