Slayer task/Fossil Island wyverns

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Fossil Island Wyverns
SkillsSlayer 66
Combat levelCombat level 60
OtherCompletion of Bone Voyage
Task Amounts
Chaeldar chathead.png Chaeldar10-20 (55-75)
Konar quo Maten chathead.png Konar15-30 (55-75)
Nieve chathead.png Nieve5-25 (55-75)
Duradel chathead.png Duradel20-50 (55-75)
Advanced data
Icon ID21507

Fossil Island Wyverns are a Slayer Monster requiring 66 Slayer to kill, 60 Combat, as well as the completion of the quests Elemental Workshop and Bone Voyage to be assigned as a slayer task.

Wyverns often use the icy breath attack dealing large damage and reducing stats if a protective shield is not equipped. An Elemental Shield, Mind Shield, Dragonfire Shield, Dragonfire Ward, or Ancient Wyvern Shield must be equipped in order to fight them.

The Anti-dragon shield, Protect from Magic prayer, and antifire potions CAN NOT be used as a substitute for the shields. As such, using two-handed weapons such as the Toxic Blowpipe or Abyssal Bludgeon is highly discouraged.

Despite offering protection from the icy breath effect, only the Ancient wyvern shield provides complete protection, preventing the accompanying freeze effect, which prevents attacking and movement. The Elemental Shield, Mind Shield, Dragonfire Shield, Dragonfire Ward will only prevent the damage and stat reductions.

Wyverns may drop Fossil Island fossils of various sizes. Both caves have a Fossil Storage box by their respective entrances.

Shield Comparison[edit | edit source]

Icon Shield Name Prevents Damage Prevents Stat Drain Prevents Freeze Notes
Anti-dragon shield.png Anti-dragon shield No No No
Elemental shield.pngMind shield.png Elemental or Mind shield Yes Yes No Obtained during Elemental Workshop I and II.
Dragonfire shield.png Dragonfire shield Yes Yes No Requires Smithing 90 , an Anti-dragon shield, and a Draconic visage to create.
Dragonfire ward.png Dragonfire ward Yes Yes No Requires Smithing 90 , an Anti-dragon shield, and a Skeletal visage to create.
Ancient wyvern shield.png Ancient wyvern shield Yes Yes Yes Requires Smithing 66 , Magic 66 , an Elemental shield, and a Wyvern visage to create.

Slayer Unlocks[edit | edit source]

Unlock Points cost Notes
Wyvern bones.png Stop the Wyvern 500 This Unlock allows you to block fossil island wyverns without it counting towards your block list, albeit much more expensive than using a block list slot in terms of slayer points used.
Fossil Island wyverns icon.png Wyver-nother two 100 The extension unlock for fossil island wyverns, which brings all tasks amounts up to a range of 55-75 assigned per task.

Monster Variants[edit | edit source]

Monster Combat Level Slayer XP Locations Notes
Spitting Wyvern 139 205 Attacks with melee, ranged, and Icy breath, but seeing as the ranged attack is not typeless and can be prayed against, it makes it more favorable to kill over taloned wyverns, and deal relatively lower damage with slightly better drops.
Taloned Wyvern 147 205 Attacks with melee, typeless ranged, and ice breath, making it the least favorable of the wyverns to kill.
Long-tailed Wyvern 152 205 Attack with only melee and Ice breath, so it is recommended to either range with an Ancient wyvern shield or melee with protect from melee active.
Ancient Wyvern 210 315 The Ancient Wyvern resembles the Long-tailed wyvern, but seems to be a stronger variant, requiring 82 slayer to kill, although it can only be killed on a fossil island wyvern slayer task.

Location Comparison[edit | edit source]

Location Maplink Amount Multicombat Cannonable Safespottable Notes
Wyvern Cave,

east of Museum Camp

No No No
Task-only Wyvern Cave,

inside the Mushroom Forest

No No No
  • Only killable when assigned a Fossil Island Wyverns slayer task