Conjurer's CountermeasureFocus 3
Source Pathfinder Impossible Magic
Cast

Duration until the end of your next turn
You quickly create a barrier that protects you against the magic of spellcraft. You gain resistance 5 against damage from spells.
The resistance from this spell is cumulative with that of Arcane Cascade. If you're in Arcane Cascade stance when the duration of conjurer's countermeasure expires, the spell's duration extends until Arcane Cascade ends.
Heightened (+3) The resistance increases by 5.
Spell Effect: Conjurer's Countermeasure
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.
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.
MagusThis indicates abilities from the magus class.
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.