Eclipsed Vitality
FEAT 4 Assassin Dedication or Scout Dedication; master in Stealth
You shroud yourself in ashes that hide the vital essence sought by life-sensing undead. You're always taking precautions when Avoiding Notice, Hiding, and Sneaking to foil lifesense, and you're Concealed to any creature using only precise lifesense to observe you.
Pathfinder Lost Omens Knights of LastwallOGL