A black dragon with a man riding on it's back

Amidst the backdrop of a war-torn landscape, a figure cloaked in darkness emerges, riding atop a formidable creature of the abyss. This monstrous beast, known as the Fell Beast, possesses wings that stretch wide against the turbulent sky, its reptilian form exuding an aura of dread. The rider, the Nazgûl king, commands the creature with an air of authority, his gaze fixed upon the horizon with an unwavering determination. As they navigate through the chaos of battle, the Fell Beast emits a low, ominous rumble, its presence striking fear into the hearts of both friend and foe. The Nazgûl king remains steadfast upon his mount, his dark silhouette a symbol of the malevolent force driving their advance. Together, they form an unholy alliance, a potent fusion of darkness and despair. Their arrival heralds a shift in the tide of battle, as the forces of shadow press onward with renewed vigor, their success seemingly assured by the ominous presence of the Nazgûl king and his Fell Beast.