固有振動
Followers are NPC allies that can accompany the player throughout the game world. There are three followers in "Diablo III": Kormac the Templar, Lyndon the Scoundrel and Eirena the Enchantress, who each possess their own skills and background. As followers fight alongside the player, they gain new experience, skills, and equipment as they level up. Only one follower accompanies the player at a time, creating a gameplay strategy decision. Originally, followers were only going to appear in Normal mode; however, Jay Wilson stated at BlizzCon 2011 that followers would continue to be usable in later difficulty levels.