Generation

The magical art of creating objects and effects out of thin air. This differs from Summoning, which brings an item from somwhere else, and Transmutation, which changes one thing into another. Like Weather magic, Generation is a subschool of Conjuration, but it can be learned by itself. No mage can cast magic from both schools unless he is a full Conjurationist

As with all magics, there are many secrets that have been lost to the ages.