Infernal Sorcerer Howl( Player's Handbook II, p. 91)
You channel the fury of your infernal ancestors into a thunderous roar that blasts your enemies with sonic power.
Infernal Sorcerer Heritage (PH2) , sorcerer level 1st,
By expending one of your spell slots, you create a 30-foot cone of sonic energy. All opponents within the cone take 2d6 points of damage per level of the spell slot expended. Each target can attempt a Fortitude save (DC 10 + the level of the spell slot expended + your Cha modifier) for half damage. This is a supernatural ability.