Brackish blade

The brackish blade is a one-handed weapon that requires 60 attack to wield. It is dropped by 'Rum'-pumped crabs in the Braindeath Island 'Rum'-geon that is unlocked in the quest A Clockwork Syringe. It has a higher stab bonus than Korasi's sword, but a lower strength bonus. Unlike other popular stabbing weapons such as the Zamorakian spear and Korasi's sword, the Brackish blade has an aggressive stab stance, which is useful for those who do not wish to gain Defence experience. This weapon is equal in all stats to a Dragon scimitar, however the stab and slash stats are switched, and it has 1 less slash defence. This makes the blade very popular for certain players who haven't yet completed the Master quest Monkey Madness. Because Korasi's sword and Chaotic weapons are harder to obtain and have higher requirements to equip, this weapon is of great use to players fighting monsters weak to stab, such as dragons. This weapon does not need the quest to be completed, or even started, to use.

The weapon, along with the Brine sabre, also deals more damage against the 'Rum'-pumped crabs, as the player receives a message in the chatbox that, "The brackish blade seems super-effective."

Special attack
The Brackish blade has a special attack,  ' Rum'ify. It doubles the chance of hitting, and adds 2.5% of the damage dealt to your Strength, Attack and Defence, draining 75% of the special attack meter. If the target is low on health and the hit is fatal, even with low damage, the player's stats will still be boosted according to what the hit would have been. This special attack visibly boosts stats and does not stack with the effects of any potions or any other boosts.

Dropping monsters

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Trivia
Lâmina Salgada
 * Brackish is a term used to describe water which is a mix of fresh water and salt water.
 * The message displayed in the chatbox when extra damage is dealt to the 'rum'-pumped crabs, "The brackish blade seems super-effective", may be a reference to the Pokemon video game series, in which certain attacks will be "super-effective" against the right type of Pokémon.
 * A player will either deal a maximum hit or no damage when its special attack is used; it's not known whether this is a glitch or not.