When determining the save DC of a poison you control, you can use 8 + your proficiency bonus + your Intelligence modifier, if it would be higher than the item's DC.
Poisoner Mastery
No prerequisite
Fighting MasteryPlayer's Handbook
At a glance
- Benefits
- 4
You are skilled at with the subtlety of poisons, causing untold destruction. You gain the following benefits:
Benefits
When you apply a poison to a weapon or ammunition, that poison can affect an additional hit or an additional piece of ammunition.
Creatures suffering from the poisoned condition have disadvantage on saving throws against poisons you control.
When using a poison that requires a saving throw and deals damage, you can take a penalty to the save DC equal to your proficiency bonus. If you do so, the item's damage increases by an amount equal to twice your proficiency bonus.