Ferocious Transformation
Druid Utility 2
In response to an enemy's attack, you transform into a beast and pounce.
Trigger: An enemy hits you while you aren't in beast form.
Effect: You use wild shape to change into beast form and then shift 1 square. You gain combat advantage against the triggering enemy until the end of your next turn.
Ferocious Transformation is a 2nd level Druid utility power. [PrP:40]