Toxic Touch

Toxin spreads from your touch. Make a melee spell attack against a creature within your reach. On a hit the creature takes 1d6 poison damage and must make a CON save against your spell save DC or be poisoned for 1 minute. 

This spell’s damage increases by 1d6 when you reach 5th level (2d6), 11th level (3d6), and 17th level (4d6).