Fissure

Fissure is a passive item added in Pack 1

Effects

 * Enemies have a chance to drop a bone orbital upon death.
 * The chance to drop depends on the luck stat, and goes up to 100% at 24 Luck.
 * Isaac receives +1% damage for each bone orbital alive.
 * Taking damage breaks all bone orbitals.
 * Isaac does a jumping animation in the process.

Synergies

 * Book of the Dead: Allows to increase damage faster.
 * Dull Razor: Bone orbitals do not break.

Trivia

 * Fissure is a reference to real life fissure which is a small cleft in anus lining.
 * Fissure concept is a reference to an enemy called "Fissure" from The End Is Nigh game.