Tony Perez's Rules of Magical Economy:

1. Take on only five or six students. More than that are not worth passing on anything to.

2. A mage will take on a very young student because, after his physical death, he will continue to be a spirit guide to that student.

3. Huwag kang sumunod sa sinumang mago na laging walang pera, naghihirap, mahigpit ang pangangailangan, at baon sa utang.