Your air elementals are more powerful than normal.

Prerequisites: base charisma 17+ or base primary attribute 21+, air elemental minion or summon

Benefit: The whirlwind of your air elementals is now able to catch creatures of the size of the air elemental, while in whirlwind form ranged attacks which go through or into the reach of the air elemental receive a penalty equal to the air elementals hit dice.