Asafum's Claw

While wearing these bones, a warlock who knows eldritch blast can use an action to cast the eldritch blast spell with the eldritch lance modifier, allowing the blast to strike at a range of 300 feet. When you cast eldritch blast this way, use your typical eldritch blast modifiers, chance to hit, and damage. The claw can't be used this way again until after a long rest. 

Notes: A warlock devoted to asafum may commune with this necklace by gazing into the stars for one night., Damage, Combat, Necklace