Your body can temporarily alter itself to consume and process unusual substances without harm. You are immune to ingested poisons and can derive nutrition from almost any organic matter, including substances that would be toxic to others. You can breathe in environments with toxic air for as many hours as your Therotheurge level before needing to refresh this ability. Additionally, you can analyze substances by taste without risking harm and can identify beneficial or harmful properties of plants, fungi, and other natural materials.

In combat: Once per rest · Out of combat: Once per rest