What ability do mages get in WOW at lvl 20?

At level 20 in World of Warcraft, mages gain the ability to learn the skill "Teleport" for specific cities, allowing them to quickly transport themselves and their party members to major locations like Stormwind or Orgrimmar. This ability significantly enhances their mobility and efficiency in traveling across the game world. Additionally, they can learn new spells and upgrade existing ones, further expanding their arsenal for combat and utility.