Runic ImpressionFocus 4
Source Pathfinder Impossible Magic
Cast

Range touch
Target you or one weapon you're wielding
Duration 1 minute
Your unarmed attacks or your weapon gain the benefits of a weapon rune you choose when you cast this spell: Corrosive, Flaming, Frost, Ghost Touch, Returning, Shock, or Thundering. If you cast runic impression on a weapon, this spell ends if you cease holding the weapon, with the exception of throwing a returning weapon. If this spell would give a weapon more property runes than its normal maximum, one of the existing property runes (your choice) is suppressed until the spell ends. For unarmed attacks, if this spell would give you more property runes than you could have from Handwraps of Mighty Blows, one of the existing property runes is similarly suppressed.
Heightened (8th) Add keen to the list of runes you can choose as well as the greater versions of Corrosive, Flaming, Frost, Shock, and Thundering.
Spell Effect: Runic Impression
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.