Unbeknownst to casual players, Pokemon in "Pokemon Sun and Moon" are assigned a "hidden set of stats" called Individual Values (IV) that are randomly applied when they are received or captured in the game. Knowing a Pokemon's IV are not easily seen at in-game stat-menus, but can be figured out using online special calculators or through unlocking a special game function.

IGN has published a detailed guide on how to check a Pokemon's IV in "Pokemon Sun and Moon," and the article also revealed that IV determines the range for each Pokemon's specific base stat. The value can be anywhere from 0 to 31, with 0 as the lowest and 31 as the most optimal IV.

Checking the IV of Pokemon in "Pokemon Sun and Moon" becomes easier when you finish the game's main story mode. Once you defeat the Elite Four and hatch at least 20 eggs, an Ace Trainer in the Battle Tree will reward your hard work with a new PC function. The special function will let you check any Pokemon's IV from PC boxes.

The terms in the IV checker are as follows: No Good - zero, Decent - 1 to 10, Pretty Good- 11 to 20, Very Good- 21 to 30 and a ranking of Best means your Pokemon's IV is 31.

For example, the attack Hidden Power's Type is calculated based on the IV of the Pokemon that you have captured. Hidden Power is a special move that can be one of 18 different types such as Grass, Fire, or Water.

Lucky gamers who own a Pokemon with exceptional IV's can even breed Pokemon to guarantee better results for a specific stat. Just give a special item to the parent of the Pokemon and you are good to go.

The following special items will affect a certain stat for your Pokemon: Power Weight = HP IVs, Power Bracer = Attack IVs, Power Belt = Defense IVs, Power Lens = Special Attack IVs, Power Band = Special Defense IVs, Power Anklet = Speed IVs and Destiny Knot = 5 Random IVs from both parents. Take note that once you give 2 different power items to both parents, the IV will be randomly decided for their offspring.