The dullahan is a man in ragged black robes and tarnished armor, this grim, headless rider is surrounded by an aura of menace. Terrifying reapers of souls, dullahans are created by powerful fiends from the souls of particularly cruel generals, watch-captains, or other military commanders. Sent back from the pits of Hell to sow terror and harvest new souls, dullahans return to the towns or villages they lived in as mortals.
Legends tell of powerful dullahans who can summon not just a single fiendish mount, but an entire carriage pulled by six powerful ebony horses.
Some dullahans are connected and summoned by groups like the Zhentarim.