Missing Page 2

Missing Page 2 is a passive item.

Effects

 * Grants one Black Heart.
 * Activates effect upon taking damage if Isaac's total health (Red Hearts, Soul Hearts, and Black Hearts) is at one heart afterward.
 * Deals 80 damage to everything in the room upon taking damage if Isaac's total health (Red Hearts, Soul Hearts, and Black Hearts) is at one heart afterward.
 * Adds +40 damage to and similar effects, such as Black Hearts, essentially doubling it.

Synergies

 * Black Feather: Grants a damage boost.
 * / / / : Since these items essentially activate The Necronomicon's effect, the damage boost is applied to these items as well.
 * r: The damage increase stacks, resulting in The Necronomicon and similar items dealing 120 damage.

Trivia

 * The item is a reference to the Necronomicon, a fictional grimoire appearing in the works of horror writer H.P. Lovecraft.
 * This is acknowledged in game by, A Missing Page, and Missing Page 2 all having a similar effect.