Possessed (skill)

 is a Boon skill in Outward.

Acquired From

 * Talk to a Friendly Immaculate, choose "Can you help me?", then choose option 4: "I need power.", then "Teach it to me, Please".
 * Can be acquired from the Bloody Business quest (The Soroboreans DLC)

Note: 
 * If sufficiently advanced in the Holy Mission faction, the Immaculate will be immediately hostile to the player. Killing the Immaculate will prevent it from spawning in other locations.