A Shiny Sceptile is a rare color variation of the normal Sceptile Pokémon. The normal Sceptile is primarily green in color, where as a Shiny Sceptile is primarily blue in color, with red and orange accents.
In addition to their unique coloration, Shiny Sceptiles have a star animation around them when they are encountered in the wild or enter into battle. Along with the unique shining animation, a special sound plays when a Shiny Sceptile is encountered.
The term "Shiny" was coined by Pokémon fans after the introduction of the uniquely colored Pokémon in Generation II of the video games for Nintendo Gameboy.