The Fungal Harpoon Gun leans on two passive perks that only pay off if your shots actually land. Its base range and velocity are low enough to make that hard, so the right enchant is the one that closes that gap without weakening anything else.
Quick answer: Put Ballistic in the main slot. It raises range by 128% and velocity by 30% while leaving Power at 10, which turns the gun’s weakest stats into usable ones.
Fungal Harpoon Gun base stats
The gun ships with a stat line that struggles at distance. Range and velocity are the two numbers holding it back, and both are the ones Ballistic targets.
| Stat | Base value |
|---|---|
| Power | 10 |
| Range | 64 studs |
| Reload | 5.00s |
| Velocity | 15/ps |
| Resilience | 10% |
| Accuracy | 12% |
| Max Kg | 5,000 |
Why Ballistic is the main-slot pick
Ballistic hits both problem stats at once. The 128% range boost pushes your effective reach well past the stock 64 studs, and the 30% velocity increase means the harpoon travels faster to where you are aiming. Neither change lowers Power, so nothing is traded away to get the improvement.
That matters because the gun’s value comes from its passives, not from raw damage. When the projectile reaches farther and moves quicker, you connect with more targets, and every connection is a chance for those passives to fire.
The passives Ballistic helps you use
Two built-in effects are the reason to run this weapon at all. Landing more shots directly increases how often each one triggers.
| Passive | Effect |
|---|---|
| Fungal mutation | 30% chance to apply the Fungal mutation to a caught fish, giving it a 4x value multiplier |
| Luck bonus | 50% chance after any catch to grant a +50% luck boost for 60 seconds |
The luck window stacks well with active farming. As long as you keep catching, you have a steady chance to refresh the 60-second bonus, which raises your odds on everything you reel in during that stretch.
What to run in the second cosmic slot
The second cosmic slot is flexible. There is no single correct choice here, so match it to whatever you are farming for at the time. Ballistic stays locked into the main slot regardless, since fixing range and velocity is the change that makes the whole weapon function.
How to enchant the Fungal Harpoon Gun
Harpoon guns are enchanted at the same place as rods, the Keepers Altar beneath the Statue of Sovereignty, which is only active at night. The one difference is what you hold when you interact.
Enchant rolls are random and pull from a pool that removes each result as it appears, so repeated relics eventually cycle back to Ballistic. If you own the Enchant Anywhere gamepass, you can skip the altar trip and enchant from any location.
Once Ballistic is on the gun, the enchantment shows as a colored prefix on the weapon’s name and its details appear above the hot bar when equipped. That prefix, plus a range and velocity line that reads far higher than the stock 64 studs and 15/ps, confirms the enchant landed.
