Summon forth the single-horned steed with a temperament as black as his coat.
Journal
While it is no secret that it was the enigmatic Ascians who provided the beast tribes with nightmares, their reasons for doing so remain shrouded in mystery. Otherwise untamable, the single piercing tone of a magicked whistle is the only method known to soothe the savage beasts.
Tooltip
See the nightmare for reality, and ready thyself for the coming chaos! - Urianger
