Feed on Pain 
Feat 5DhampirSource Ancestry Guide pg. 26Frequency once per hour
Prerequisites AdhyabhauTrigger you deal mental damage
The psychic feedback of another creature's pain fills you with false life. You gain temporary Hit Points equal to half the mental damage you dealt from the triggering effect. If the triggering action dealt mental damage to multiple creatures, calculate these temporary Hit Points using the creature that took the most damage. You lose any remaining temporary Hit Points after 1 minute.
Traits
Dhampir: A creature with this trait has the dhampir versatile heritage. These humanoids are the immortal offspring of vampires and members of other ancestries.