Nightmare
Nightmare
A Nightmare appears in a cloud of roiling smoke,its mane,tail,and hooves wreathed in flame.The creature's unearthly black form moves with supernatural speed,vanishing in a cloud of brimstone as quickly as it appeared.
Dread Steed
Also called a "Demon Horse" or "Hell Horse",the Nightmare serves as a steed for creatures of exceptional evil,such as a Death Knight,a Lich or a NIGHT HAG ,also carrying Demons,Devils,and other vile monsters.It resembles a fiendish horse,and a Nightmare's fiery red eyes betray its malevolent intelligence.
A Nightmare can be summoned from The Lower Planes,but unless a worthy sacrifice is offered to it as food upon its arrival,the Nightmare displays no special loyalty to the creature it serves.
Comments
Author's Notes
Original Article written for D&D Monster Manual 5e by Wizards of the Coast (WotC)