Even some evil dragons shudder at the experiments their more twisted kinfolk perform on lesser creatures. Still the experiments continue—infrequently, always in secret, but they do continue. A handful of evil dragon sorcerers enjoy manipulating lesser life forms into abominations of depraved strength; other dragons secretly encourage these experiments, and their results roam wild on the Vast, providing challenging hunts.
One such worthy opponent is an enormous roc, fed with arcane power until it swelled to distended proportions and gained a number of special abilities. The spellwarped (MM3 162) experiment also awakened a dull intelligence in the roc’s mind. As evil now as the beings who created it, the roc soars through the skies of the Vast in search of prey.
In combat, the roc’s cruel nature drives it to play with its food, often snapping up a small creature and then dropping it from a hundred feet up. The roc has survived this long through cunning and an instinct for self-preservation; on occasion a dragon tracks it down, then releases the roc so that the hunt can continue.