Tail's End Double-Bladed Scimitar (Rare)

The double scimitar is the signature weapon of Valenar elves. A haft of fine wood supports a long blade on either end. Forged with techniques honed over tens of thousands of years, these blades are strong, sharp, and remarkably light. Each scimitar is a masterpiece, and as a result the double scimitar is an expensive weapon, but few people ever have an opportunity to purchase one. If you're an elf, your blade could have a long and storied history. If you're not an elf, you might have stolen the weapon from a fallen foe or received it from a dying Valenar ally. If you work with your DM to create the story behind your double scimitar, you can start with the weapon at 1st level in place of a martial weapon normally granted by your class. However, it can be dangerous for a non-elf to carry a double scimitar. Valenar may demand its return or challenge you to prove that you're worthy to wield it.

The blade of this wicked khopesh is composed of several individual sections linked by a sturdy chain running through the weapon's length. Always dry to the touch, this magical blade appears to continuously absorb any water with which it comes into contact.

Split at the Seams: As a bonus action, you can press a button hidden on the weapon's hilt to cause the sections comprising the blade to magically detach from one another, remaining connected by the chain. Until reformed as a sword as a bonus action, this weapon loses its former sword properties and gains those of a whip.

Unquenchable Thirst: When you roll a 20 on an attack roll made with this weapon, it releases a deadly burst of desiccating, negative energy that drains moisture from a target, forcing it to make a DC 15 Constitution saving throw. On a failed save, the target takes 6d6 necrotic damage and is desiccated for 1 minute. On a successful save, a creature takes half as much damage and isn't desiccated. A desiccated creature's skin turns dry and brittle, rupturing with ease, and causing the creature to take an additional 1d4 slashing damage whenever it takes bludgeoning, force, piercing, slashing, or thunder damage. A desiccated creature can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success. This property has no effect on creatures without skin or on those immune to necrotic damage.

Special: If you attack with a double-bladed scimitar as part of the Attack action on your turn, you can use a bonus action immediately after to make a melee attack with it. This attack deals 1d4 slashing damage on a hit, instead of 2d4.

Two-Handed: This weapon requires two hands when you attack with it.

Proficiency: martial, double-bladed scimitar Source: Heliana's Guide to Monster Hunting - Part One p. 480, Eberron: Rising from the Last War p. 21, Wayfinder's Guide to Eberron p. 74