Magic StoneSpell 1
Source Pathfinder Advanced Player's Guide
Traditions Divine, Primal
Cast
to 
(somatic, verbal)Range touch
Target 1 to 3 non-magical stones or sling bullets
Duration 1 minute
You pour positive energy into ordinary stones, granting them temporary magical properties. You can target 1 non-magical stone or sling bullet for every action you use Casting this Spell. The stones must be unattended or carried by you or a willing ally. The stones become +1 striking disrupting Sling Bullets. Each stone can be used only once, after which it crumbles to dust.
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.
NecromancyEffects and magic items with this trait are associated with the necromancy school of magic, typically involving forces of life and death.
PositiveEffects with this trait heal living creatures with positive energy, deal positive energy damage to undead, or manipulate positive energy.