 Since Generation IV, breeding Pokémon that originated in games of two different languages results in Eggs with a 1 in 1,638 (Generation IV games) or 1 in 1365 (Black and White onwards) chance to contain a Shiny Pokémon; this method of increasing odds has been dubbed the "Masuda method" after developer Junichi Masuda.Additionally, an item introduced in "Black 2" and "White 2" called the Shiny Charm increases the probability of finding Shiny Pokémon.However, this item is only accessible long after completing the game, as the player must have completed the National Pokédex (excluding Mythical Pokémon).