Merlin is a tall, beautiful, and mature woman who possesses vast knowledge and control of magic. Her magical power is called "Infinity" and it means she can never get tired, and she can't age either. She has infinite power, hypothetically speaking. Biologically, she is around 13 years old, but chronologically, she is over 3000 years old. Her Sacred Treasure, Aldan, helps her focus her vast power. She has long, silky black hair that reaches about shoulder length, and beautiful golden eyes.