Poison Mastery

When you gain this feat, you gain the following benefits:

• You can ignore immunity to poison damage, treating it instead as resistance. In addition, when you roll damage for a spell you cast that deals poison damage, you can treat any 1 on a damage die as a 2.
• When crafting Poison (using a Poisoner's Kit) you double the amount of Poison you create from a single set of ingredients.