Poison Fang 2014

You conjure a spectral snake that bites down on one creature you can see within range. The target must succeed on a Constitution saving throw or take 1d12 poison damage and be poisoned until the start of its next turn.

This spell's damage increases by 1d12 when you reach 5th level (2d12), 11th level (3d12), and 17th level (4d12).