Ki Cutting SightFocus 3
Source Pathfinder Wake the Dead #2
Cast

Range 30 feet
Target 1 creature
Ki flows through everything in existence—animals and plants, living and dead, mortals and spirits. Strike at just the right place, in just the right way, and the flow is stopped, with dire consequences.
When you Cast the Spell, make a perception check against the target's Fortitude DC. If you succeed, the next time you deal damage to the target with a Strike or ki spell, you deal 4d10 additional slashing damage.
Spell Effect: Ki Cutting Sight
Heightened (+1) The slashing damage increases by 1d10.
Traits
This rarity indicates that a rules element is very difficult to find in the game world. A rare feat, spell, item or the like is available to players only if the GM decides to include it in the game, typically through discovery during play. Creatures with this trait are rare. They typically can't be summoned. The DC of Recall Knowledge checks related to these creatures is increased by 5.
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.
MonkAbilities with this trait are from the monk class. A weapon with this trait is primarily used by monks.