Wikia

Lord Skwol is a hydra boss summoned at a Greater Windstone in Silithus. He is a powerful elemental being requiring 20-40 people to defeat. He is significantly more difficult than the other 3 summoned bosses. Summoning him requires a full Twilight Trappings set, a Twilight Cultist Medallion of Station, and a Twilight Cultist Ring of Lordship.

Abilities

Thrash (Gives the caster 2 extra attacks.)
Venom Spit (Spits poison at nearby enemies, inflicting Nature damage, then additional damage every 5 sec. for 30 sec.)
Sunder Armor (Uses stackable Sunder Armor on the main tank. Decreases armor by 1000.)

Cleanse the stackable poison DoT quickly.
Set up a 2 or 3 man tank rotation to counter the stackable Sunder Armor ability.

Loot
Wavefront Necklace Item Level 65Disenchants into: [Nexus Crystal]: 1-2 Binds when picked up Neck +6 Intellect +5 Stamina Requires Level 60 Equip: Restores 8 mana per 5 sec. Equip: Increases spell power by 13. Sell Price: 6 16 17	Abyssal Mail Armguards Item Level 68 Binds when picked up Mail Wrist 174 Armor <Random Enchantment> Durability 40 / 40 Requires Level 60 Sell Price: 1 66 64	Abyssal Plate Epaulets Item Level 68 Binds when picked up Plate Shoulder 530 Armor <Random Enchantment> Durability 80 / 80 Requires Level 60 Equip: Increases your hit rating by 10. Sell Price: 2 89 99
Abyssal Scepter Item Level 1Disenchants into: Not disenchantable	Essence of Water Item Level 55Disenchants into: Not disenchantable Sell Price: 4	Elemental Water Item Level 25Disenchants into: Not disenchantable Sell Price: 4	Globe of Water Item Level 45Disenchants into: Not disenchantable Sell Price: 4