PossessionSpell 7

Something of uncommon rarity requires special training or comes from a particular culture or part of the world. Some character choices give access to uncommon options, and the GM can choose to allow access for anyone. Less is known about uncommon creatures than common creatures. They typically can't be summoned. The DC of Recall Knowledge checks related to these creature is increased by 2.

Effects and magic items with this trait are associated with the necromancy school of magic, typically involving forces of life and death.

An ability with this trait can take a character completely out of the fight or even kill them, and it's harder to use on a more powerful character. If a spell has the incapacitation trait, any creature of more than twice the spell's level treats the result of their check to prevent being incapacitated by the spell as one degree of success better, or the result of any check the spellcaster made to incapacitate them as one degree of success worse. If any other effect has the incapacitation trait, a creature of higher level than the item, creature, or hazard generating the effect gains the same benefits.

A mental effect can alter the target's mind. It has no effect on an object or a mindless creature.

Effects with this trait allow a creature to project its mind and spirit into a target. A creature immune to mental effects can't use a possession effect. While possessing a target, a possessor's true body is unconscious (and can't wake up normally), unless the possession effect allows the creature to physically enter the target. Whenever the target takes damage, the possessor takes half that amount of damage as mental damage. A possessor loses the benefits of any of its active spells or abilities that affect its physical body, though it gains the benefits of the target's active spells and abilities that affect their body. A possessor can use any of the target's abilities that are purely physical, and it can't use any of its own abilities except spells and purely mental abilities. The GM decides whether an ability is purely physical or purely mental. A possessor uses the target's attack modifier, AC, Fortitude save, Reflex save, Perception, and physical skills, and its own Will save, mental skills, spell attack roll, and spell DC; benefits of invested items apply where relevant (the possessor's invested items apply when using its own values, and the target's invested items apply when using the target's values). A possessor gains no benefit from casting spells that normally affect only the caster, since it isn't in its own body. The possessor must use its own actions to make the possessed creature act. If a possessor reaches 0 Hit Points through any combination of damage to its true body and mental damage from the possession, it is knocked out as normal and the possession immediately ends. If the target reaches 0 Hit Points first, the possessor can either fall unconscious with the body and continue the possession or end the effect as a free action and return to its body. If the target dies, the possession ends immediately and the possessor is stunned for 1 minute.