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 an unlockable 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.

Notes

• Bone particles will be created whenever Isaac shoots, though this is purely visual.
• Because the bones deal contact damage equal to Isaac's damage in the moment they were created, 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.

Interactions

• Ace Cards: Turning enemies into pickups doesn't spawn bones.
• E. Coli/Flush!: Enemies that are turned into poop don't spawn bones.

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.

Bugs

Bug!	If switching between Tainted Lazurus and Dead Lazurus with the Flip item, there is a chance to spawn a mass amount of bone spurs on the place you flip each time you use the item.

The Binding of Isaac: Rebirth
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