Book of Progression

The is an Accessory that upgrades based on the player's SkyBlock Level.
==Obtaining==
The Book of Progression can be claimed in the Leveling Rewards menu after reaching . After being obtained, it can be bought from Rusty for .
==Upgrading==
The Book of Progression's Rarity will be upgraded at the following levels:
* : 
* : 
* : 
* : 
* : 
* : 
The player can select one of 3 abilities to use:
* Stacked Healing (Unlocked at ): When being healed, heal the amount.
* Defensive Strongman (Unlocked at ): When you are attacked, take less of the incoming damage.
* Extra Infliction (Unlocked at ): When you deal damage, deal the amount.
Where X is the player's divided by . Selecting an ability costs multiplied by the player's .
==Trivia==
* The price of this item at is not affected by the and its upgraded versions.
*Experience Artifact, Personal Compactor, Personal Deletor, Book of Progression, Melody's Hair, Zombie Talisman, Skeleton Talisman, Archaeologist's Compass, Lucky Hoof, Eternal Hoof, Shiny Yellow Rock and Yellow Rock of Love are the only accessories to use a vanilla sprite, rather than a custom made one.
==History==