Venomous Tooth

You create a Needle of poisonous energy and throw it at one creature within range. Make a ranged spell attack against the target. On a hit, the target takes 1d10 piercing damage. The target  must succeed on a constitution saving throw or take 2d6 poison damage and are poisoned for one minute. 

At Higher Levels. When you cast this spell using a spell slot of 2nd level or higher, the poison damage increases by 1d6 for each slot level above 1st.