The Store is the in-game interface for spending various resources to make purchases. Some store items require gems or gold, others use honor points, and some use real world money (i.e. in-app purchasing).
Mystery Box Edit
The Mystery Box allows the player to spend gems for a random draw from 50 random monsters. The Mystery Box usually resets at the beginning of each month, with 5 preselected 6-star monsters being featured for each period. The player's mystery box draw always includes one of these featured 6-star monsters, three 5-star monsters, and a random assortment of 3 and 4-star monsters, which the player can view before making a purchase/draw. The player can also reset the draw list for gold, but the amount doubles with each attempt, and the featured monster is chosen randomly.
WARNING: The Mystery Box draws may be rigged, with the featured monster often occurring suspiciously late or dead last in the 50-monster "random" draw.[verify]
Here the player can spend gems, gold, or friend points (or occasionally real-world currency) on various monster and pet cubes.
Here the player can spend gems to purchase energy.
Here the player can spend real-world currency on various gem, gold, and cube bundles.
Here the player can spend gems to acquire gold.
This area of the store contains various upgrades such as inventory expansion, limited-time boosts, etc.