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Merphistophelin are Elder Dragons introduced in Monster Hunter Online.


Merphistophelin is a pale white Elder Dragon whose physical appearance is very similar to that of Fatalis. Running along from it's head to it's tail rests a line of dark grey spines, trailing off from being shortest on the tail to larger barbs along the back of its neck. Its head is rather unusual, being somewhat avian and serpentine in appearance, while also sporting a prominent spike on its chin. This dragon's wings are also abnormal in their appearance, being almost devoid of any sort of membrane in between, yet this beast somehow retains the ability to fly. Its wing membrane appears when it enters one of its elemental states. On its chest is an assortment of rib-cage like barbs that normally stay closed around its purple chest cavity. These barbs will spring open during either of its states with the "core" in it changing to various colors depending on the state its in.


Merphistophelin is an unique Elder Dragon that is capable of utilizing both the Fire and Dragon elements by using the "core" on its chest to enter the respective element's state or return to its original neutral state.

While not using an element, Merphistophelin is only capable of physical attacks, but by entering an elemental state, not only does Merphistophelin gain access to various breath and elemental attacks, but the effects of those attacks varies depending on Merphistophelin's state.

While in its Fire state, Merphistophelin gains access to a heated beam attack, and if it chooses to crawl along the ground, it will ignite the ground underneath it. These ignited spots will inflict Fireblight on hunters who step into them. While in this state, While in this state, Merphistophelin tends to use its crawl attack.

While in its Dragon state, Merphistophelin is capable of utilizing a draconic breath attack, and if it performs its crawling attack, it will charge the ground underneath it with the Dragon Element. If hunters step onto this afflicted soil, they will be stunned.

Whenever Merphistophelin is about to change state, it will fly into the air and curl itself, before releasing an elemental explosion that is capable of inflicting Fireblight (Fire) or Stun (Dragon).


This Elder Dragon is very aggressive and territorial and will attack any and all trespassers in its territory. Merphistophelin can also become enraged as well during its fight after sustaining enough damage.

Other Non-Subspecies Forms

Elemental Merphistophelin

Elemental Merphistophelin are variants of Merphistophelin.

MHO-Merphistophelin (Ice State) Render 001.png

Effectiveness Diagram (MHO)

Information sourced from ingame Ecology Illustration chart.

Shock T.
Pitfall T.
Flash B.
Sonic B.
Blast Status Effect-Blastblight MH4 Icon.png
Parts Physical Elemental
Cut. D. Imp. D. Shot D. Fire.png Water.png Thunder.png Ice.png Dragon.png
⬤ = Good | ▲ = Average | ✕ = Bad | ▬ = N/A

Game Appearances

Chronological Appearances
First US / EU Appearance: First JP Appearance: Latest Appearance:
None None Logo-MHO.png (2013)

Music Themes

MHO: Merphistophelin Music Theme

In-Game Description

Monster Hunter Online
MHO-Merphistophelin Icon.png (?)
Threat Level (危険度): !!!!!!!


  • Merphistophelin's head, wings, chest and tail can be wounded.
  • Breaking Merphistophelin's chest also damages the spikes at the base of its tail.
  • Merphistophelin's name may possibly be based on the word "Mephistopheles," which is the name of a demon featured in German folklore. However, the word is made of three different Greek words: μή (mḗ), φῶς (phō̃s), and φιλις (pheles). "mḗ" is used as a negation, "phō̃s" means "light", and "pheles" means "loving." Together this means "not-light-loving".[1]