monster

Dullahan

CR 10

Medium Undead, Unaligned

Reveal Stat Block

Armor Class

16 ({@item breastplate|PHB})

Hit Points

135 (18d8 + 54)

Speed

30 ft.

str

dex

con

int

wis

cha

Traits

Headless Summoning (Recharges after a Short or Long Rest).If the dullahan is reduced to 0 hit points, it doesn't die or fall unconscious. Instead, it regains 97 hit points. In addition, it summons three death's head|VRGR|death's heads, one of each type, in unoccupied spaces within 5 feet of it. The death's heads are under the dullahan's control and act immediately after the dullahan in the initiative order. Additionally, the dullahan can now use the options in the 'Mythic Actions' section. Award a party an additional 5,900 XP (11,800 XP total) for defeating the dullahan after it uses Headless Summoning.

Legendary Resistance (2/Day).If the dullahan fails a saving throw, it can choose to succeed instead.

Unusual Nature.The dullahan doesn't require air, food, drink, or sleep.

Actions

Multiattack.The dullahan makes two attacks.

Battleaxe.mw 8 to hit, reach 5 ft., one target. ({@damage 1d8 + 4) slashing damage, or 9 (1d10 + 4) slashing damage if used with two hands, plus 11 (2d10) necrotic damage. If the dullahan scores a critical hit against a creature, the target must succeed on a 15 Constitution saving throw or the dullahan cuts off the target's head. The target dies if it can't survive without the lost head. A creature that doesn't have or need a head, or has legendary actions, instead takes an extra 27 (6d8) slashing damage.

Fiery Skull.rs 7 to hit, range 120 ft., one target. ({@damage 2d10 + 3) fire damage.

Legendary Actions.The creature can take 3 legendary actions...

Attack.The dullahan makes one attack.

Frightful Presence (Costs 2 Actions).Each creature of the dullahan's choice within 30 feet of it must succeed on a 15 Wisdom saving throw or become frightened of the dullahan until the end of its next turn.

Head Hunt (Costs 3 Actions).The dullahan moves up to its speed without provoking opportunity attacks and makes one Battleaxe attack with advantage. If the attack hits, but is not a critical hit, the attack deals an extra 27 (6d8) necrotic damage.

Dullahan

Dullahans are headless undead warriors—the remains of villains who let vengeance consume them. These decapitated hunters haunt the areas where they were slain, butchering innocents in search of their severed heads or to quench their thirst for revenge.

Wicked knights or commanders in life, dullahans adhere to twisted codes of chivalry or soldiership. These fallen champions consider a specific location their battlefield. This gives rise to stories of haunted battlegrounds, ruins, roads, river crossings and other strategic locations where a dullahan continues a terrifying campaign against the living. In death, dullahans are often rejoined by those who followed them in life, either in the form of lesser undead, like skeletons or wights, or terrifying mounts, like warhorse skeletons or nightmares.

Headless Hunts

Dullahans are known for seeking their lost heads, giving rise to regional legends of headless hunters and endless searches. The Dullahan Legends table suggests dullahan hauntings that might be the stuff of local legends.