The Infernal harpoon can be used as a weapon or to catch fish. Fishing with it requires 75 fishing, and gives a 1/3 chance for the fish to be cooked as it is fished. This will consume the fish and will grant half of the Cooking experience that would normally be granted when cooking the fish. The Infernal harpoon possesses the same special attack as the Dragon harpoon, which requires 100% special attack energy and boosts the player's Fishing level by 3.