MAG Units are support devices in the world of Phantasy Star Online 2. Unlike human characters, MAGs are artificial lifeforms that assist players by providing various stat boosts, healing, and special abilities in combat. Each player's MAG can evolve into different forms based on how it is raised, influencing the player's playstyle. Although not a traditional character, MAGs play a crucial role as reliable partners, enhancing gameplay and contributing to the narrative's technological atmosphere.