Earthshaking Growl (3.5e Spell)

''You lower your tail and begin growling ominously. As the ground begins to shake, people around you fall over.''

When you cast this spell and each time you concentrate on it, every character who is touching the ground within the area other than yourself must make a Reflex save or Balance check or fall prone.

Verbal Component: The ability to speak languages is not a prerequisite for this spell.

Somatic Component: Hands are not required; Having a tail with some muscular control and being either quadrupedal (or more) or prone is.