Brine-infused Rod

Brine-infused Rod is sold at the Brine Pool for 75,000$, and the in-game text says it gives a 50% chance of the Brined mutation. It was designed by a researcher who vanished, according to that lore. It has a passive, a Disturbance of +1 and a Hunt Focus of Brine Storm.

The numbers are lopsided in an interesting way. Resilience is 350, ranked 2nd of 184 obtainable rods, and the maximum weight of 650,000 kg is 9th of 117. Luck is only 50 (157th), Lure Speed is 40 (146th) and Control is 0 (141st). So it is slow and unlucky, but nothing is likely to break it.

That makes it a mutation rod, not a rarity rod. With a 50% chance at Brined on every catch, the goal is to turn average fish into higher-value ones, and Resilience 350 plus a huge weight cap lets you keep big ones as they come in.

Buy it if you want to farm a specific mutation and do not mind slow bites. If you hunt rare species, it will frustrate you: Luck 50 puts it near the bottom, so use it for mutation runs and keep another rod for rarity. Check the Brine Storm hunt focus before you go.