Book of toys (ignore until chapter 15)

Mc's main ability ( Mary = toy box ) ( Bloody Mary = Toy Recycling )

Toy box - the ability to store literal toys and enhance their power through nen (uses emitter type Nen for projectiles)

Toy recycling - stores dead bodies to be used at a later time, can use Nen abilities of the dead bodies.

Story of life and death - The Marys ultimate attack, Mary, heals all allies and increases toy's powers dramatically. Bloody Mary exudes an aura of death around her, dramatically increases her toy's powers. Both include the drawback of not being able to surface for the next 2 months. If one is used the other can't be used until the 2 months pass.

Play date - both Marys attack together using their abilities, the attack power of both corpses and literal toys decrease. Good for swarming the enemy.

Empty pages - storage for the corpses/toys. At any given time only 4 corpses and 10 toys can be stored

Illusory binding - ensures the two souls don't split apart, can use weak illusions (nen ability gained from the forest of illusion)

Swap - when one Mary takes control over the body by "swapping" with the other.