Requirements You must have 1 or more Corruption

You dissolve into a cloud of black smoke and then move a number of yards equal to twice your Speed. While you are a cloud, you are immune to damage from all sources, your movement does not trigger free attacks, and you can move through spaces occupied by other creatures and through openings large enough to permit the passage of air. When you stop moving, you return to your normal form and the space you occupy, and open spaces within 1 yard of you, become partially obscured for 1 round or until dispersed by wind.
Triggered You can use a triggered action on your turn to cast this spell. If you do so, you instead move to an open space you can see within a number of yards equal to your Speed.