From Dragon Quest Wiki

Mortamammoth is a secret boss featured in the 3DS and Nintendo Switch versions of Dragon Quest XI: Echoes of an Elusive Age. He is the one responsible for defiling the records of the Altar of Reverie. He fights alongside Psaroid and the Nimclops in the second level of the Hall of Remembrance.


Mortamammoth's appearance differs greatly depending on the version of the game. In the 3DS version, he is a Naumannborg. In the Switch version, he is a Bilhaw. Nevertheless, Mortamammoth has the power and abilities of Mortamor's two transformations, and seeks to destroy history.

Dragon Quest XI: Echoes of an Elusive Age[edit]

Mortamammoth DQXI Logo EN.png
All versions
Sprite HP MP Attack
6,000 725 550
Defense Agility Experience Gold
500 260 14,000 7,000
Bestiary no. 721
Family ??? family
In-game description A beast imbued with the powers of a potent evil that once tried to take control of people's dreams. Its unholy attacks lure its foes into an eternal slumber.
Spell(s) Kaswooshle
Magic Burst
Skill(s) Desperate Double (Pep Power with Nimclops)
Gets pepped up
Roundhouse Kick
War Cry
Location(s) Hall of Remembrance
Item(s) dropped None
Evasion Fire Resistance * Ice
Wind Resistance *
064 0% 25% 25%
Rock Resistance * Light Resistance * Dark Resistance * Zap Resistance *
25% 25% 0% 25%
Drain Magic Resistance Whack Resistance * Poof Resistance Poison Resistance *
0% 100% 100% 25%
Paralysis Resistance * Fuddle Resistance * Snooze Resistance * Dazzle Resistance *
100% 100% 100% 50%
Sap Resistance * Blunt Resistance Deceleratle Resistance Spooky Aura
Anthamatize Resistance
0% 0% 0% 0%
Fizzle Resistance * Stun Resistance * Stumble Resistance * Charm Resistance *
100% 100% 100% 100%
Beguile Resistance * Double Down Resistance * Elemental Resistance *
100% 0% 0%


In Japanese, these are two seperate monsters.

The elephant-looking version that appears in the 3DS version of DQXI is named ナウマンムーア (Naumanmūa) in Japanese, which is a portmanteau of the Japanese names for the enemies Naumannborg (ナウマンボーグ Naumanbōgu) and Mortamor (デスタムーア Desutamūa).

The one from the Switch version is named セルゲイムーア (Sergeimūa) in Japanese, a portmanteau of the Japanese names for Bilhaw (セルゲイナス Sergeinasu) and Mortamor (デスタムーア Desutamūa).

The English name "Mortamammoth" is a combination of the name "Mortamor" and the English word "Mammoth". This name presumably describes both of the above monsters, but it is also possible this was a localization error, as the word "Mammoth" is arguably more appropriate for a monster resembling an elephant than a monster resembling a Bilhaw - yet the latter is the only one that actually appears in an English language version of DQXI, as the elephant version is exclusive to the 3DS version, which never received a release outside of Japan.

See Also[edit]