# Infernal Constitution *Source: Xanathar's Guide to Everything p. 75* **Prerequisite**: [Tiefling](/Rules/Source/races/tiefling-xphb.md) Fiendish blood runs strong in you, unlocking a resilience akin to that possessed by some fiends. You gain the following benefits: - Increase your Constitution score by 1, to a maximum of 20. - You have resistance to cold and poison damage. - You have advantage on saving throws against being [poisoned](/Rules/Source/conditions.md#Poisoned).