Bone Missile Feat 9
Source Pathfinder Book of the Dead
You can remove your ribs to use them as arrows or bolts. When you draw a rib, you lose 2 HP, and the projectile deals 2 extra negative damage if you Strike with it before the end of your next turn. The HP loss and extra damage both increase to 3 at 12th level and 4 at 19th level. Your rib cage magically replenishes, and any rib you draw crumbles to dust after being used for a Strike or at the end of your next turn, whichever comes first.
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.
SkeletonThis undead is made by animating a dead creature's skeleton with negative energy. An ability with this trait can be used or selected only by skeletons.