The use of ones gifts takes a considerable toll on the body, one would be fatigued within minutes after using powers, even "Prodigies" have difficulty. One can be taught to draw power from a separate "plain" of existence.

To access this plain, one must first offer up some of your own power to draw the other plains power.

Beginners can get about 3 fold the energy they put in, but experts and masters of this can get more than a hundred times the amount of energy they put in.