Arachnid Shortsword

 

An Arachnid Weapon, a creation of the Skrika and his followers, is formed from chiton and sinew. It may chitter and shift in your grip if it's not being used. If any creature attempts to wield this weapon while not attuned to it, it has disadvantage on attack rolls made using the weapon. Additionally, if you are attuned to this weapon when another creature tries to wield it, the weapon’s hilt extrudes sharp fangs and that creature takes 1d4 points of piercing damage each turn. 

While attuned to and wielding this weapon, you can use a bonus action to bond to it, causing fangs from the hilt of the weapon to burrow into your flesh. While bonded to it, you gain the following benefits: 

• The weapon is bound to your hand and can’t be removed from your grasp, voluntarily or involuntarily. If it’s a two-handed weapon, only one of your hands is bound to the weapon. 

• When you hit a creature with this weapon, you can choose to spend one Hit Die to deal additional damage with the attack, and as you do, drain the life from your foes. Roll the Hit Die and add your Constitution modifier; the attack deals extra necrotic damage equal to the result, and you regain an equal number of hit points. 

You can end the weapon’s bond as an action, causing the fangs to retract so you can release the weapon. You can remain attuned to the weapon regardless of whether you’re bonded to it.

Proficiency with a Shortsword allows you to add your proficiency bonus to the attack roll for any attack you make with it.

Notes: Bonus: Magic, The pommel of this dagger bites down on you palm and, over the course of an hour, slowly pumps a venom into your system that will inhibit attunement., Finesse, Light, Vex