The Cusk Purger is the last rod added in Fisch’s The Deep update, and it is built almost entirely for one job. With a +7 Disturbance stat, it is the strongest tool in the game for spawning hunt fish, and any fish it catches can roll the new Monstrous mutation for a large payout. Crafting it takes 750,000 C$ plus a set of deep-sea materials, including three teeth pulled from the Monstrous Cusk itself.
Quick answer: Gather 3 Monstrous Cusk Tooth, 1 Line of the Deep, 3 Refined Scrap, 3 Hardened Chitin, 3 Abyssal Bio-Fluid, 1 Radiant Prism Scale, and 3 Ancient Bone, then pay 750,000 C$ at the crafting station in The Deep to build the Cusk Purger.
Cusk Purger stats and cost
The rod leans heavily on luck and progress speed rather than lure speed. Its standout number is Disturbance, which controls how often you trigger hunt events. The model is unusually short, closer to a stick than a full rod, but that has no effect on performance.
| Stat | Value |
|---|---|
| Crafting cost | 750,000 C$ |
| Lure Speed | 88% |
| Luck | 225% |
| Control | -0.05 |
| Resilience | 25% |
| Max KG | Infinite |
| Progress Speed | +40% |
| Disturbance | +7 |
Materials needed to craft the Cusk Purger
Everything on this list comes from The Deep and its sub-locations. The three Monstrous Cusk Teeth are the hardest part, so plan around those first. The rest can be farmed while fishing in the Gloomy Crevice and Outer Deep.
| Material | Quantity |
|---|---|
| Monstrous Cusk Tooth | 3 |
| Line of the Deep | 1 |
| Refined Scrap | 3 |
| Hardened Chitin | 3 |
| Abyssal Bio-Fluid | 3 |
| Radiant Prism Scale | 1 |
| Ancient Bone | 3 |
How to get all 3 Monstrous Cusk Teeth
The teeth come from two different sources. Your first one is a quest reward, while the other two are pulled directly from the Monstrous Cusk fish during a hunt event.
Farming the remaining materials
The Line of the Deep, Refined Scrap, Hardened Chitin, Abyssal Bio-Fluid, Radiant Prism Scale, and Ancient Bone all drop from fishing across The Deep. The most efficient approach is to split your time between two spots.
- Fish the Gloomy Crevice, where you can AFK farm with the Toxin Burst Rod to steadily collect drops.
- Travel to the Outer Deep to gather the materials that do not appear in the Crevice.
Crafting the rod and confirming it worked
Once all seven materials are in your inventory, go to the crafting station in The Deep and select the Cusk Purger recipe. Confirm the craft and pay the 750,000 C$ cost.
You will know it succeeded when the game awards 15,000 XP for discovering the Cusk Purger and unlocks the “100% Completed [The Deep]” achievement. The rod then appears in your equipment menu as a short stick model.
What the Cusk Purger is best used for
The +7 Disturbance stat is the reason to keep this rod equipped. Disturbance raises the rate at which hunt fish spawn, so the Cusk Purger is the go-to option when you want to trigger hunts quickly rather than wait for them. Its 225% luck and +40% progress speed also make the actual catch fast and consistent.
Fish caught with the rod can roll the Monstrous mutation, which multiplies a catch’s sell value by 9x. That combination of frequent hunt spawns and a high-value mutation is what makes it a strong money-maker inside The Deep.
Note: The rod’s low lure speed and negative Control mean it is not a general-purpose reeler. Swap to it when you are actively spawning and farming hunt fish, then switch back to a balanced rod for everyday catches.
