Aurosalia

Aurosalia is a blood elf located in Silvermoon City's Sunfury Spire, in the same room as the mage trainers. A mage named Elrodan is repeatedly polymorphing her into various different forms. Although she is not happy about this and is apparently a mage herself judging by her attire and her mana bar, she never casts any spells on him to make him stop. She takes on a multitude of forms such as a serpent, dragonhawk, giraffe, sheep, squirrel and worgen, all shown below.