Shellbane Gryphon
A boss on The Great Conch for Mortimer's gryphon task line. Needs 51 Slayer and a gryphon Slayer task to enter its cave.
How the fight works
Teleport to the gryphon caves and head east to the Shellbane cave. You need 51 Slayer and a gryphon Slayer task: without the task you are turned away. Everyone in the cave gets their own kill credit and drop roll when it dies.
It creates whirlwinds in the arena during the fight, and they disappear when the gryphon dies.
Drops
| Item | Quantity | Chance |
|---|---|---|
 Gull UniquePet Gull, rolled separately | 1 | 1/3,0000.0333% |
 Jar of Feathers Unique | 1 | 1/2,0000.05% |
 Belle's folly (tarnished) Unique | 1 | 1/751.33% |
 Big bones | 1 | Always |
 Gryphon feather | 7-10 | Always |
 Raw swordfish | 1 | 1/5.1919.3% |
 Rune claws | 1 | 1/10.59.54% |
 Sweetcorn | 1 | 1/10.59.54% |
 Watermelon | 1 | 1/10.59.54% |
| Gryphon feather | 35-50 | 1/10.59.54% |
 Shark lure | 3-5 | 1/10.59.54% |
 Rune scimitar | 1 | 1/13.37.5% |
 Adamant cannonball | 35-50 | 1/13.37.5% |
 Rune cannonball | 20-30 | 1/16.26.18% |
 Raw sea turtle | 1 | 1/24.74.04% |
 Basket | 1 | 1/30.43.29% |
 Grimy ranarr weed | 1 | 1/87.31.15% |
 Snapdragon | 1 | 1/1160.864% |
 Ranarr seed | 1 | 1/1730.579% |
 Snapdragon seed | 1 | 1/2860.349% |
 Long bone | 1 | 1/5710.175% |
 Curved bone | 1 | 1/7,1300.014% |
Chance per kill for a player with no drop bonus. See Game modes and XP rates for how bonuses change these numbers.