Winged Fury: A special ability that winged creatures have. This spell is done by sending jets of air (and other bits of things) shooting at your foe. You have to be in flight to cast this spell. The following affects are: 

The target of your spell takes 1d6 force damage and 2d6 acid damage.

The target has to do a strength saving throw of 16 or be knocked prone.

The spell's damage increases to 1d7 at 4th level, 2d7 at 6th level, 3d7 at 7th level, 4d7 at 12th level, 5d7 at 14th level and 6d7 at 16th level.