Mutant snake monsters that have suddenly become exceptionally large. Allegedly capable of swallowing up entire chunks of terrain.
- Name: Mushussu
- Family: Aquatic (Rare Monster)
- Location: Savalon Region
- Vulnerable: Water | Earth | Swords | Spears
- Half Damage: Fire | Air
- Immunity: N/A
- Absorb: Dark
- Common Drop: Mermegalodon Scale
- Rare Drop: Defender
- Common Steal: Mermegalodon Scale
- Rare Steal: Defender
- Off The Leash Move: N/A