Apothecary

You can prepare and deliver powerful potions and deadly poisons, granting you the following benefits:

• Increase your Constitution or Intelligence score by 1, to a maximum of 20.
• When you make a damage roll that deals poison damage, it ignores resistance to poison damage.
• You can apply poison to a weapon or piece of ammunition as a bonus action, instead of an action.
• You gain proficiency with the Poisoner's Kit and the Alchemist's Kit if you don’t already have it. With one hour of work using an alchemist's kit or a poisoner’s kit and expending 50 gp worth of materials, you can create a number of doses of potion or poison equal to your proficiency bonus. 
• Choose one skill in which you have proficiency. You gain expertise with that skill, which means your proficiency bonus is doubled for any ability check you make with it. The skill you choose must be one that isn’t already benefiting from a feature, such as Expertise, that doubles your proficiency bonus.