In the core series games
If held by a Sceptile, allows it to Mega Evolve into Mega Sceptile if its Trainer has a Key Stone. Each Trainer can only Mega Evolve one Pokémon per battle.
Unaffected by item negating effects (such as Embargo and Klutz). Item manipulating effects (such as Trick and Fling) cannot give Sceptile a Sceptilite or remove a Sceptilite from Sceptile.
Outside of battle
If held by a Sceptile, allows it to Mega Evolve into Mega Sceptile when it performs a Spectacular Talent during a Pokémon Contest Spectacular while its Trainer has a Key Stone. Sceptile will remain a Mega Sceptile until the Talent Round ends.
Pokémon holding Sceptilite in Pokémon Omega Ruby and Alpha Sapphire cannot be traded to Pokémon X and Y.
| One of a variety of mysterious Mega Stones. Have Sceptile hold it, and this stone will enable it to Mega Evolve during battle.
In spin-off games
|| This section is incomplete.|
Please feel free to edit this section to add missing information and complete it.
In Pokémon Shuffle, the Sceptilite allows the player to Mega Evolve Sceptile.
The player can obtain the Sceptilite by completing Mission Card 19.
The Sceptilite was also available as a prize during the Mega Sceptile Competitive Stage. This Competitive Stage ran on both the Nintendo 3DS and Mobile versions from April 5 to 12, 2016.
The Sceptilite enables the following Mega Evolution:
|| Mega Sceptile
|| Replaces Pokémon (max 3) of the same type as Mega Sceptile.
Converts three tiles containing a single Grass type into Mega Sceptile.
In the anime
In the manga
In other languages
|| 蜥蜴王進化石 Sīkyihkwòhng Jeunfa Sehk
|| 蜥蜴王進化石 / 蜥蜴王进化石 Xīyìwáng Jìnhuà Shí
|| 나무킹나이트 Namukingnite