Dagger of Venom
Acquired from the evidence room in Kharazak Prison, this dagger has the following properties: You gain a +1 bonus to attack and damage rolls made with this magic weapon. You can use an action to cause thick, black poison to coat the blade. The poison remains for one minute or until an attack using this weapon hits a creature. That creature must succeed on a DC 15 Constitution saving throw or take 2d10 poison damage and become poisoned for 1 minute. The dagger can’t be used this way until the next dawn.