Spell: Magic Stone

You pour vitality 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.

@UUID[Compendium.pf2e.spell-effects.Item.Spell Effect: Magic Stone]