Lashing Asp
Swordmage Attack 1
A spectral asp winds itself around your sword. With each successful strike you make, the asp lunges to attack nearby foes.
Personal
Effect: Until the stance ends, whenever you hit an enemy with a melee attack, each enemy adjacent to the target of that attack takes poison damage equal to your Constitution modifier. Also, whenever you hit an enemy marked by your Swordmage Aegis power with a melee attack, it takes poison damage equal to your Constitution modifier.
Lashing Asp is a daily power available to swordmages at 1st level.[AP:52]