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 combat dungeon unlocked in the quest A Clockwork Syringe. It has a higher stab bonus than Korasi's sword, albeit 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 are switched. 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 to be used. The drop rate is approximately 1 every 200.The guy on the picture looks hot

The weapon, along with the Brine sabre, also seems to do more damage against the rum drunk 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. As this special attack visibly boosts stats, it of course does not stack with the effects of any potions or any other boosts.It is likely to hit 250+.

Trivia

 * The special attack is a play on the brine sabre's special attack, liquefy. They have the same animation, the only difference being that liquefy can only be used underwater.
 * You can still receive the message "The Brackish Blade seems super-effective!" from an attack that misses.
 * In the days after release, the blade rose almost 100% in price.