Harpoon

Harpoons are Flails used to hunt fish, works on baddies as well.

The harpoon fires a heavy projectile that falls quickly, it's useful for trying to eliminate enemies on the other side of hills or similar areas, it also has a high knockback, making it effective as improvised home defense. The arc makes the Harpoon effectively similar to that of arrows fired from a bow, but with a slower re-fire rate and effectively infinite ammunition.

It is dropped by Goblins (Possibly the Peons) and acts like boomerangs, returning to the player after hitting a wall or enemy.