Circle of WeaknessFocus 1
Source Pathfinder Impossible Magic
Cast

Area 15-foot burst
Range 60 feet
Duration 1 minute
Saving Throw Fortitude
Winning magical combat often requires exploiting weakness. You evoke a circle of floating inscriptions that creates and amplifies energy-based weaknesses on creatures inside the circle. Choose one type of damage from the following list: acid, cold, electricity, fire, force, or sonic. When you Cast the Spell and the first time you Sustain it each turn, each creature in the area must attempt a Fortitude saving throw.
Critical Success The creature is unaffected.
Success The creature gains weakness 1 to the chosen damage type for 1 round.
Failure As success, except the weakness is doubled.
Critical Failure As failure, and the creature becomes Immobilized for 1 round or until they [/act escape].
Spell Effect: Circle of Weakness
Heightened (+2) The weakness gained on a success increases by 1.
Traits
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.
ConcentrateAn action with this trait requires a degree of mental concentration and discipline.
FocusFocus spells are a special type of spell attained directly from a branch of study, from a deity, or from another specific source. You can learn focus spells only through special class features or feats, rather than choosing them from a spell list. Furthermore, you cast focus spells using a special pool of Focus Points—you can't prepare a focus spell in a spell slot or use your spell slots to cast focus spells; similarly, you can't spend your Focus Points to cast spells that aren't focus spells.
ManipulateYou must physically manipulate an item or make gestures to use an action with this trait. Creatures without a suitable appendage can't perform actions with this trait. Manipulate actions often trigger reactions.
WizardThis indicates abilities from the wizard class.