Compound Fracture

Compound Fracture is an unlockable passive item added in Afterbirth †.

Effects

 * Tears turn into bones, which shatter into 1-3 shards upon hitting an obstacle or enemy.
 * Shards deal 50% of Isaac's normal tear damage.
 * +1.5 range.
 * +1.0 tear height.

Synergies

 * : The bomb will break into 1-3 more bombs which are launched in random directions from the point of impact.
 * : Bone tears can be charged to increase size and damage. Bone shards will not change in size but will increase in damage depending on how much bone tears were charged.
 * /: Each tear splits into more tears, which will all shatter.
 * : Tears will sometimes burst into smaller tears when hitting obstacles or enemies. These smaller tears are basically miniature Haemolacria tears, which will burst when hitting the ground.
 * : If the bone tear hits a wall or an obstacle, it will split into explosive half-damage shards. Hits on enemies and the floor behave as normal Ipecac.
 * : Tear turns into a spinning bone that rapidly spews out smaller bone shots on contact with enemies.
 * : Isaac spits a burst of many bone tears, each of which can split, resulting in many shards.
 * : Eyeball tears will still float, be knocked around by each other, and will burst into split tears when hitting enemies or obstacles.
 * : Tears bounce off walls, and will only shatter when hitting enemies. Bone shards will also bounce off obstacles.
 * Spectral Tears: Bones pass through obstacles and generate shards for each obstacle they pass through, which can result in many shards being generated from a single bone.
 * : Bone tears and bone shards will be connected by electricity.
 * : Bone tears and bone shards will orbit around Isaac.

Interactions

 * : Bone tears will hover until released but bone shards will travel normally.
 * : Overrides Compound Fracture.
 * : Overrides Compound Fracture.
 * : Overrides Compound Fracture.
 * : Bones will split up as normal, and upon touching an enemy, will burst into 10 bones which will all split. Bones and bone fragments have a chance to deal triple damage (bone fragments deal 50% of Isaac's tear damage by default), and they will instantly kill normal enemies.
 * : Bone tears will bounce when they are fired, however, bone shards will not bounce when they travel.
 * : Bone tears can be fed and will burst into split tears. Bone tears will burst into bone shards when hitting obstacles or enemies which can also be fed and burst into split tears and bone shards yet again. When bone shards are fed, they turn back into bone tears which can repeat this process again and again.
 * : Overrides Compound Fracture.
 * : Bone tears can burst into bone shards but often disappear before they get a chance to burst. Bone shards will start shrinking from the bone tear's size when it split so bone shards will disappear very quickly.
 * /: Overrides Compound Fracture.
 * : The laser is not affected, but bone tears still shoot from Isaac's left eye.
 * : Bone tears will not burst into bone shards when fired at obstacles, however, bone tears will burst into bone shards when fired at enemies.
 * : Beams will only burst when hitting obstacles.

Trivia

 * With this item, Isaac's tears have the same appearance as a Bony's projectile.
 * The item is a reference to bone fractures, a medical condition involving bone damage due to impact or stress.

Compound Fracture