## Arcane Toughness You draw upon the power of your magic to sustain yourself, allowing you to continue fighting long after your physical body has failed you. **Prerequisite:** [[Toughness]], arcane caster level 3rd **Benefit:** You can expend a prepared spell or spell slot as an when you are reduced to 0 or fewer hit points. You heal a number of points of damage equal to the level of the spell or spell slot used in this manner. This ability does not function if you are kill or disable you without doing hit point damage.