Bone Spurs

Item Icon
Pickup Quote	"Break your enemies"
Entity ID	5.100.683
Item Pool	Treasure Room Treasure Room
Quality	2
Item Tags
Collection Grid	(page 6, column 11, row 4)
Unlock Method	Defeat Mother as The Forgotten

Bone Spurs is a passive item added in The Binding of Isaac: Repentance.

Effects

• Enemies spawn 1-2 floating bones on death, which block enemy shots and damage/repel enemies that touch them.
  • Bones block 2 shots and/or deals 2 ticks of damage before breaking.
  • Bones deal contact damage equal to Isaac's damage in the moment they were created.
    • This means that if the damage stat was changed, the bones that were already present on the screen will use Isaac's old damage stat.

Synergies

• BFFS!: Doubles the bones' size and damage.
• Spin to Win: Boosts the bones' damage while spinning even though there's no visual tell of the effect.

Trivia

• A bone spur is a bony growth that often occurs close to joints and can have a multitude of causes from joint damage from osteoarthritis to excessive overuse of said joints.

The Binding of Isaac: Rebirth
Achievements	Attributes	Bosses	Cards and Runes	Challenges	Chapters
Characters	Co-op	Items	Item pools	Monsters	Objects
Pickups	Pills	Rooms	Seeds	Transformations	Trinkets