From the introduction: Purple ash pours from the mouth of Haftir’s lair, corrupting the land around it and turning creatures into his dark servants. The dark dragon rarely emerges from his lair, instead relying on his purple-tinged minions to carry out his plans. While little is known of his intentions, the scope of his influence suggests he has big plans for the world. User summary: Provides the "Purple-Tinged" template for any non-construct.