La's Dath (Voidtear in Common)
Weapon (dagger), sentient (neutral evil)
Damage: 1d4 piercing + 3d6 necrotic
Properties: Finesse, light, thrown (range 20/60)
Special: This dagger drips a black ichor that corrupts the minds of those it wounds. Whenever the character takes damage, he or she must succeed on a DC 15 Wisdom saving throw or be affected as though he or she failed a saving throw against the confusion spell. The confusion effect lasts for 1 minute. In addition, the dagger is sentient and communicates telepathically with its wielder. The dagger desires the suffering and death of others, and encourages its wielder to engage in acts of violence and cruelty.
Sentience: The dagger has Intelligence 14, Wisdom 10, and Charisma 16. It communicates telepathically with its wielder and can speak, read, and understand Deep Speech. The dagger has darkvision out to a range of 120 feet, and it can sense the presence of other creatures within 30 feet of it. The dagger is immune to psychic damage, and it cannot be destroyed by normal means. The dagger has a personality that reflects its evil nature and desires, and it will seek to manipulate and control its wielder for its own ends.