Hammer of Whispers (Patreon)

Weapon (light hammer), uncommon (requires attunement)

This dark silver hammer is miraculously light. It has the finesse property, and any target hit with it takes an extra 1d4 psychic damage. Hitting a target with the hammer produces no sound.

Curse. This weapon is cursed, and becoming attuned to it extends the curse to you. As long as you remain cursed, you are unwilling to part with the hammer, keeping it within reach at all times. You also have disadvantage on attack rolls with weapons other than this one, unless no foe is within 60 feet of you that you can see or hear.

When you reduce a creature to 0 hit points using this weapon, make a DC 10 Wisdom saving throw. On a failed save, your mind is plagued with mysterious whispers; you take 2d6 psychic damage and are incapacitated until the end of your next turn.

"Look at them, just lying on the ground. That could be you, you know...could be. It could be—maybe it should be you...it should be you....