Tooth and Nail

"You feel prickly"
Entity ID	5.100.663
Character Appearance
Item Pool	Treasure Room Treasure Room
Collection Grid	(page 6, column 12, row 3)

Tooth and Nail is a passive item added in The Binding of Isaac: Repentance.

Effects

• Every 6 seconds, Isaac turns to stone and sprouts spikes for 1 second. While Isaac is in this state, he is immune to damage and deals 40 contact damage.
  • Isaac flashes white four times before turning to stone on the fourth flash. The first three flashes are accompanied by a "ticking" sound, the final one with the spike extension sound of a mimic chest.
  • Unlike Gnawed Leaf, Isaac can still move and shoot tears.

Notes

• Blood Donation Machines and Devil Beggars will still deal damage while Tooth and Nail is active.
• With proper timing, Curse Rooms can be both entered and exited without taking damage.
• When invincible, Mimic Chests can be opened without taking damage.

Synergies

• Damocles: As Isaac is invincible 1/6th of the time, with some luck, Tooth and Nail may save him from the falling sword.
• Kamikaze!: Allows usage without taking damage during invincibility.
• The Lost can use this item to prevent additional damage from occuring after losing the Holy Mantle (for example, exiting a curse room after being hit), and it does not use up the Holy Mantle's 1-hit protection if it has not been lost.

Seeds

PC 3T0E WTWQ (Treasure Room adjacent to spawn)