To cast this spell the Mage must draw a circle in the ground on which he is standing, up to his level in strides across. When the spell is cast this circle forms the boundary of a protective ward. If the Mage stays within this ward then he gains Magic Defence +8. This protection lasts until one day has passed or until the Mage leaves the circle for any reason.
This spell may be used in conjunction with Shadow Geomancy to make a Geomantic Circle.