Catch Combos is another New concept that was first introduced in this game. By catching the same species of Pokemon in a row, you will begin what is called a Catch Combo. (If a Wild Pokemon Flees or you catch a different Pokemon Species, or if you save and exit the game, your Catch Combo will break.) The higher a Catch Combo you achieve, the more additional benefits you will reap.
By creating a large Catch Combo, you will receive more Items and Experience from Wild Pokemon Captures. Along with this, the higher the Catch Combo you make, the more likely it will be for the Pokemon you catch to have better Individual Values. You will also be more likely to find Shiny Pokemon the larger the Catch Combo you achieve, as well as increase the likelihood of Rare Spawns appearing in the overworld.