Vylja's Vortex
(Alteration)(Elemental (Air), Weather)

Range:  5 yards per level
Components:  V, S, M
Duration:  2 rounds per level
Casting Time:  5
Area of Effect:  10-foot circle
Saving Throw:  None

Upon the completion of this spell a magical platform of dense air is formed at ground level in the area of effect. The platform can be pushed up by a strong but harmless rising current of air: creatures can struggle through it without too much difficulty, but spellcasting is impossible underneath the platform. The caster can cause the platform to move up or down at a maximum rate of 10 yards per round. All creatures standing on the platform will be moved accordingly, unless they either jump off or find some other way of transportation (flying, for example).
The caster need not stand on the platform to control its height, but if he wants to raise or lower it he has to concentrate on that task during each round he wants to do so. If he does not concentrate on it, the platform remains stationary. If the caster's concentration is interrupted the platform stops with a jerk (all creatures on it have to make a successful Dexterity check to avoid falling off).
The priest's holy symbol is needed as the material component for this spell.

