Slayer Monster guide

OSRS Shellbane Gryphon Guide: 51 Slayer, 40kg Rule & Drops

Shellbane Gryphon needs 51 Slayer, Troubled Tortugans and a gryphon task. Wear the tortugan shield and 40kg+ of gear, melee it and keep moving.

Bils Services TeamWiki-checked 12 Oct 20268 min read32 views0 comments
Shellbane Gryphon — Bils Services OSRS guide
Classification
Slayer bossBoss version of gryphons
Group
Slayer boss
Difficulty
3 / 5
Solo or team
Solo instance
Hitpoints
400

The short version

30-second read
  • Count worn weight only, not the stats screen. That screen adds your inventory to the total, so check your equipped items alone reach 40 kg.
  • Step off the orange spit straight away. If it lands it corrodes your armour and deals 3 to 12 damage six times over 32 ticks.
  • Hit it during the 2-tick stun. A knockback your weight negates opens that window for free damage.
  • Belle's folly needs a polish first. Take the tarnished drop to the Giants' Foundry wheel with 70 Smithing and Sleeping Giants done.
01

Overview: Shellbane Gryphon at a Glance

The Shellbane Gryphon is the boss version of gryphons, added with Sailing on 19 November 2025. To fight it you need 51 Slayer, Troubled Tortugans completed and a gryphon task, and it lives in a solo instance in the cave at the centre of the Great Conch, just north of fairy ring CJQ.

Three rules decide the kill. Wear the tortugan shield, which sits in your cape slot and lets Protect from Melee block its melee hits completely. Keep at least 40 kg of equipped weight. That counters its knockback (up to 30 unavoidable damage) and makes it favour its other two special attacks. Step one tile after every attack so its whirlwinds never stack, because a full five-stack bursts across the whole cave.

Use melee. It is primarily weak to melee, its lowest defence bonus is stab at +10, and the wiki recommends 65 Attack and 65 Strength with Protect from Melee held for the whole fight. Magic technically works through its 50% air weakness, but one of its special attacks makes it impractical.

Table 1Shellbane Gryphon — key facts10 rows
FieldDetail
ClassificationSlayer boss (boss version of gryphons)
GroupSlayer boss
Difficulty3 / 5
Solo or teamSolo instance
Access requirement51 Slayer, Troubled Tortugans, gryphon task
Notable rewardBelle's folly (tarnished), Jar of Feathers, Gull pet
Signature mechanic40 kg equipped-weight check on its knockback
Hitpoints400
Max hits22 (standard), 30 (knockback), 64 (whirlwinds)
Released19 November 2025
02

Access Requirements

  • 51 Slayer to damage it. Each kill gives 400 Slayer XP.
  • Troubled Tortugans, which needs 51 Slayer, 48 Construction, 45 Sailing, 45 Hunter, 40 Woodcutting, 34 Crafting and Pandemonium to start. The quest is what opens the Great Conch.
  • A gryphon task. Vannaka, Chaeldar and Mortimer hand out gryphons once the quest is done. Nieve and Duradel only do so after you buy Wings Spread for 80 Slayer points, though they can give the Shellbane Gryphon as a boss task without it. Konar can also pick it when she assigns a boss task.
  • The only off-task kill is the elite clue step that asks you to kill it, and that allows one kill.

The 45 Sailing for the quest is usually the slowest part for older accounts. Our Sailing guide covers the early levels, and the boss requirements checklist lists the other Slayer boss gates by group.

03

Location and How to Get There

The Shellbane Gryphon is in its own cave in the centre of the Great Conch. Elder Nama stands at the entrance and keeps a scoreboard.

Fairy ring CJQ is the fastest route: arrive and run north to the cave. Without fairy rings, take a charter ship to the Great Conch. The fight is a solo instance, and once your task is finished the gryphon stops respawning, so you cannot keep farming it after the last kill.

05

Inventory and Supplies

  • Food, or a Saradomin godsword for healing. Low-level players can use a knife on the watermelon drops.
  • Divine super combat or super combat potions, plus prayer potions for Protect from Melee.
  • A special attack weapon such as a dragon dagger.
  • A rune pouch and Book of the Dead for thralls, which work here. A cannon does not: it is immune.
  • A bracelet of slaughter, herb sack and bonecrusher if you have them.
  • A teleport to house tablet or Construction cape for the trip out.
06

Mechanics: Attack Styles, Max Hits and Immunities

Table 4Shellbane Gryphon — combat profile (wiki infobox values)11 rows
PropertyValue
Combat level235
Attack stylesMelee, Ranged
Attack speed5 ticks
Respawn time20 ticks (12 seconds)
Attacks on sightYes
Poisons youNo
Size4 tiles
Immune to poison and venomYes
Immune to cannonYes
Immune to thrallsNo
Slayer requirement51
07

Where Shellbane Gryphon Sits in Progression

Within the Slayer boss group, the fights below Shellbane Gryphon are Kraken and Thermonuclear Smoke Devil. Above it sit Araxxor and Abyssal Sire.

08

Fight Strategy: Weight, Whirlwinds and Spit

  1. 1

    Before entering, check your equipped weight is 40 kg or more.

    The equipment stats screen adds your inventory to the total, so count worn items only.

  2. 2

    Turn on Protect from Melee (and Piety) and attack.

    With the tortugan shield on, its melee does no damage through prayer.

  3. 3

    Move one tile after every attack.

    A whirlwind forms on your tile every 3 ticks, up to five, and they merge into a bigger one if you stand still.

  4. 4

    When it spits an orange blob, step one tile off that spot.

    If it lands it corrodes your armour and deals 3 to 12 damage six times over 32 ticks. Quickly unequipping everything stops it.

  5. 5

    When your weight negates a knockback, the gryphon is stunned for 2 ticks.

    Attack it in that window to push it back a tile and get a free hit. If you don't, the game says 'The gryphon regains its focus and strikes!' and you are thrown anyway.

Table 5Whirlwind damage by stack size (wiki strategy page)5 rows
StackDamage per tick on itBurst damageBurst radius
12-320-240
25-625-291
38-930-392
410-1240-493
511-1550+Entire cave

Whirlwinds start hurting 6 ticks after the last one forms and burst about 15 seconds later. When you counter a knockback the gryphon moves a tile, so check you are not shoving yourself into a whirlwind you left behind.

09

Drops and What Shellbane Gryphon Is Worth

The drop people farm it for is Belle's folly (tarnished). Take it to the polishing wheel in the Giants' Foundry with 70 Smithing and Sleeping Giants done and it becomes Belle's folly, a tradeable one-handed stab weapon that needs 65 Attack. The other collection log slots are the Jar of Feathers and the Gull pet.

Every kill also drops big bones and 7 to 10 gryphon feathers. Long bones, rune weapons and cannonballs, herbs and seeds fill the rest of the table, and Konar tasks add brimstone keys.

10

Combat Achievements

There are seven Shellbane Gryphon tasks. The weight rule is the point of the hardest one.

Table 6Shellbane Gryphon Combat Achievements7 rows
TaskTierWhat it asks
Shellbane AdeptEasyKill it 25 times
Dry CleaningEasyKill it after clearing corrosive spit from your armour
Perfect ShellbaneMediumKill it without taking damage
Shellbane VeteranMediumKill it 50 times
Shellbane SpeedrunnerMediumKill it 10 times within 12:30 of entering the cave
Shellbane SurvivorHardKill it 25 times without leaving the cave
Featherweight FighterHardKill it 5 times without leaving the cave in gear under 40 kg

Combat Achievements guide

11

Ironman Notes

Gryphon tasks come from Vannaka, Chaeldar and Mortimer, and from Nieve and Duradel after Wings Spread. Konar can give the Shellbane Gryphon only as a boss task. Each kill is 400 Slayer XP.

Belle's folly is tradeable, so a main can buy it. An ironman needs the tarnished drop and the Giants' Foundry polish, which means 70 Smithing and Sleeping Giants are part of the plan before the drop is useful.

12

Common Mistakes and Death Causes

  • Leaving the tortugan shield in the bank, so its melee hits through Protect from Melee.
  • Reading weight from the equipment stats screen, which includes your inventory, and walking in under 40 kg equipped.
  • Standing still for two or three attacks and letting whirlwinds stack.
  • Staying on the tile the corrosive spit was aimed at.
  • Not attacking during the 2-tick stun after a negated knockback.
  • Arriving without a gryphon task. It will not respawn after the task ends.
  • Setting up a cannon it is immune to.
13

FAQ

What do I need to fight the Shellbane Gryphon?

51 Slayer, Troubled Tortugans and a gryphon task, or a boss task from Konar, Nieve or Duradel. Bring the tortugan shield from the quest.

How much weight do I need for the Shellbane Gryphon?

40 kg of equipped weight. At that point it prefers its whirlwind and spit attacks over the knockback. Inventory weight does not count, even though the equipment stats screen adds it to the total.

Which protection prayer should I use?

Protect from Melee. With the tortugan shield equipped it negates all of its melee damage.

How hard does the Shellbane Gryphon hit?

22 from its standard attack, up to 30 from the knockback and up to 64 from stacked whirlwinds. It has 400 hitpoints.

Do I need a Slayer task?

Yes. Vannaka, Chaeldar and Mortimer assign gryphons after the quest; Nieve and Duradel need Wings Spread (80 Slayer points) for normal gryphon tasks. The one exception is the elite clue step, which allows a single kill.

Where are normal gryphons?

Also on the Great Conch, in two caves. The western cave lets you fight them off task; the eastern cave is task-only. The superior version is the dire gryphon, and the Shellbane Gryphon has its own cave in the middle of the island.

What does the Shellbane Gryphon drop?

Belle's folly (tarnished), the Jar of Feathers and the Gull pet are the uniques. Every kill also gives big bones and 7 to 10 gryphon feathers.

Can I use a dwarf multicannon here?

No. It is immune to cannon damage.

What kills people at the Shellbane Gryphon?

Stacked whirlwinds. A five-stack bursts for 50 or more across the whole cave, and it only happens to players who stop moving between attacks.

Still stuck on a mechanic? Ask the team on our Discord, it is free.

14 · Bottom line

Bottom Line

Get the shield on, get your worn gear past 40 kg and move a tile every attack, and the Shellbane Gryphon becomes a steady melee kill. Most deaths come from stacked whirlwinds after a player stops moving.

If the quest gate is what stops you, our quest service covers quest requirements and is done by hand with no automation. The bosses list has the full index.

Sources

Numbers and mechanics on this page come from these 2 OSRS Wiki pages:

Written by the Bils Services Team · the team that runs our OSRS services

Shellbane Gryphon: Slayer boss, difficulty 3/5. Combat values, requirements, special attacks, Combat Achievements and drops on this page were checked against the Old School RuneScape Wiki and its strategy page on 12 October 2026. Kill rates, GP per hour and item prices are deliberately absent because they move with balance patches and the Grand Exchange.

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