Mordenkainen's Lost Notebook
3-level Conjuration
A black fluid dribbles from the corner of your mouth as your saliva becomes a virulent poison. For the duration, you can use your action to either spit the poison at a foe or apply it to a weapon. To spit the poison at a foe, choose a target you can see within 30 feet of you. Make a ranged spell attack. On a hit, the target takes 4d6 poison damage and is poisoned. At the end of each of its turns, the target can make a Constitution saving throw. On a success, the effect ends. As a bonus action, you can apply the poison to a weapon you wield. The next creature you hit with the weapon takes 4d6 poison damage and is poisoned. At the end of each of its turns, the target can make a Constitution saving throw. On a success, the effect ends. You can apply the poison either to a manufactured or natural weapon, including your own bite attack if you have one. The poison remains on your weapon until you make a successful attack or until the spell’s duration ends, whichever comes first.