Venom-Drenched

You have nothing to fear from one sort of poison. In fact, you can actually drink the toxic brew in order to make your blood dangerous.

Benefit: You are immune to one specific nonmagical poison. If you ingest a dose of that poison (even if it is a contact, inhaled, or injury poison), it remains in your system for 24 hours; any creature that bites you during that time is subject to the poison’s effects.