Ghost Hunter Feat 1
Source Pathfinder Advanced Player's Guide
Your connection to the Boneyard ensures that your blows strike true against spectral beings.
Your weapon and unarmed attack Strikes against incorporeal creatures become magical. If they are already magical, they instead gain the effects of a Ghost Touch property rune.
Traits
Anything that doesn't list another rarity trait (uncommon, rare, or unique) automatically has the common trait. This rarity indicates that an ability, item, or spell is available to all players who meet the prerequisites for it. A creature of this rarity is generally known and can be summoned with the appropriate summon spell.
DuskwalkerA creature with this trait has the duskwalker versatile heritage. Duskwalkers are planar scions infused with the supernatural energy of psychopomps. An ability with this trait can be used or selected only by duskwalkers.