The prowess of one Dragon attack is modified by +2. Alternatively, it may be played on a Ruins & Lairs [R] site that has two Wildernesses in its site path (only one Wilderness is required if Doors of Night is in play)-one Dragon hazard creature may be played on a company at that site this turn.
"...there was neither bush nor tree, and only broken and blackened stumps..."
-Hob