You can expand your MP at the expense of your health.
As a swift action, you can recover 2 MP by taking 1 point of ability burn to each of your three ability scores: Strength, Dexterity, and Constitution. You can recover additional MP for a proportional cost; for example, you could choose to recover 6 MP by taking 3 points of ability burn to Strength, Dexterity, and Constitution.
Special: Ability Burn is a special form of ability damage that cannot be magically healed. It returns only through natural healing.