 In the third generation and onward, however, Shininess is determined by another value, and Shiny Pokémon are not stronger than any other Pokémon in battle.Most fans consider Shiny Pokémon to be collectors' items because of their rarity.The term "Shiny" was initially a term invented by the "Pokémon" fan community due to the flash of stars that appear when such a Pokémon enters a battle, implying a sheen property to the colors of the Pokémon.