Twin Sea Dragon Serpent

From Melvor Idle
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Twin Sea Dragon Serpent
Twin Sea Dragon Serpent
Monster ID: melvorTotH:TwinSeaDragonSerpent

Foggy Lake - Player takes +150% damage when asleep

Monster Types: Slayer Area
Slayer Tier: Mythical

Twin Sea Dragon Serpent is a monster found in the Foggy Lake Slayer area. Killing 100 Twin Sea Dragon Serpents is required to unlock the Tsunami Archaic Magic spell.


Combat Stats
Combat Level: 1,026
Hitpoints: 14,500
Attack Speed: 2.6s
Max Hit: Ranged 960
Accuracy Rating: 75,447
Damage Reduction: 50%
Evasion Ratings: Defence (skill).svg Ranged (skill).svg Magic (skill).svg
49,086 85,446 65,416
Skill Levels: Attack (skill).svg Strength (skill).svg Defence (skill).svg Ranged (skill).svg Magic (skill).svg
1 1 900 900 500


  • Ranged Normal Attack
    • 1 - 793 Ranged Damage (Instead of repeating Water Dance while the effect is already active)
  • 20% Ranged Water Dance
    • On use, gives the enemy +20% Damage Reduction, +20% Global Evasion, and -20% Attack Interval for 2 of the enemy's turns. If the buff is already active, the enemy performs a Normal Attack instead.
  • 25% Ranged Torrential Dragonbreath
    • A torrent of water is blasted into you dealing 300 damage 40 times over 5.85s.
  • 30% Ranged Giant Bubble
    • The enemy traps you in a large bubble dealing 800 damage. On a hit, applies sleep for 2 turns. Avoidable.
  • 25% Ranged Tsunami
    • Giant waves rush towards you dealing 800 damage 3 times over 0.8s. On a hit, gives you +20% Attack Interval for 3 of your turns. Avoidable.


  • Intimidation
    • Reduce Player damage reduction by 29%
  • Duality
    • For each Target Attack Turn: 50% chance for the Target to apply -50% Attack Interval to itself for 2 turns


Always Drops:

Item Qty
Magic Bones 1


In addition to loot, the monster will also drop GP 1 - 3,600.

Item Qty Price Chance
Augite Arrows 1 - 50 GP 75 - 3,750 4/5 80.00%
Torrential Blast Crossbow Shard 1 GP 0 1/5 20.00%
Total: 100.00%

The loot dropped by the average kill is worth GP 1,530 if sold.
Including GP and bones, the average kill is worth GP 3,630.5.