Essential Air

Area
Creates the magical essence of Air. Essential Air is “purer” and can be used (breathed or consumed) three times as long before becoming foul. Fire burns hotter (but not faster) in Essential Air, adding an extra point of damage to each die (this will even increase the heat of Essential Flame!).
If the air is created in an open area, it disperses within 5 seconds.

Duration: Permanent until dispersed or used up.
Base cost: 2.
Time to cast: 3 seconds.
Prerequisites: At least six Air spells.

Item
Staff, wand, or jewelry. Usable only by mages.
Cost to create: 800 energy and a $400 onyx.