Missile
The caster creates a ball of highly pressurized air in his hand. When the air strikes a target, it explodes. The blast is extremely loud; anyone within 10 yards must roll against HT-3 or be stunned. Stunned people may roll against HT-3 every second to recover. Protected Sense (P, X) (Hearing) gives a +5 bonus to this roll.
Concussion has 1/2D 20, Max 40, Acc 1; roll vs. Innate Attack skill to hit.

Cost: Any amount up to twice your Magery level per second, for three seconds. For every 2 energy put into the spell, the missile does 1d crushing damage. See AOE, Cones, Explosions), for a full treatment of explosive damage.
Time to cast: 1 to 3 seconds.
Prerequisites: Shape Air and Thunderclap (p. 171).

Item
Staff or wand – the missile is thrown from the end of the item. Usable only by mages.
Cost to create: 1,000 energy and a $400 onyx.