A terrible skeletal demon, sealed in a treasure chest by wizards long ago to keep its evil from the world. It was thought at the time to be immortal, but its bones had become brittle over the centuries, leaving it vulnerable to destruction.

Encyclopaedia description

Bone Demon is an enemy in MARDEK.


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Main form

Possible equipment



33333 999
STR: 40 VIT: 28 SPR: 33 AGL: 16
ATK: 50 DEF: 10 MDEF: 10 EVA: 0

Elemental resistance

Glyph Fire Fire Glyph Water Water Glyph Air Air Glyph Earth Earth
-50% 80% -100% 200%
Glyph Light Light Glyph Dark Dark Glyph Aether Aether Glyph Fig Fig
-100% 200% -50% -100%
Glyph Physical Physical Glyph Thauma Thauma Glyph Divine Divine
100% -100% 0%

Status resistance

Poison Poison Paralysis Paralysis Numb Numbness Silence Silence
40% 60% 80% 30%
Curse Curse Confusion Confusion Sleep Sleep Darkness Blindness
100% 60% 100% 50%
Bleed Bleed ZombieStatus Zombie Berserk Berserk
100% 100% 10%


AttackPhysicalPhysicalDeals damage to one target. May hit critically.0 MP
Furious FlameFireMagicalDeals damage to one target. Inflicts Berserk Berserk (100%).0 MP
Raging InfernoFireMagicalDeals high damage to all targets.16 MP
EarthquakeEarthMagicalDeals high damage to all targets.16 MP
DeathDarkMagicalHits one target. May instantly KO (70%). Inaccurate.20 MP
CurseDarkMagicalHits all targets. May inflict Curse Curse (80%).10 MP
Blood ClawDarkPhysicalDeals damage to one target. Lowers VIT by 1-2. Inflicts Bleed Bleed (100%).20 MP
Dark ClawDarkPhysicalDeals damage to one target. May inflict Darkness Blindness (10%).10 MP



  • Starts the fight with Haste.
  • A list of strategies can be found here.


  • The Bone Demon is one of 3 monsters that has any resistance or weakness to Thauma. The other monsters are the Carpioneiros and the Security Demon.

Related enemies

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