A central mechanic for a big chunk of the story of Pokémon X and Y, Mega Evolution allows your Pokémon to evolve into new, more powerful forms for the duration of a battle. In order to trigger Mega Evolution the Pokémon must be holding a Mega Stone, and the Mega Stones for each of the eligible Pokémon species are spread throughout Kalos. You'll need to do a lot of searching to find them all.
This guide will help you track down all of the Mega Stones in Pokémon X and Y. It is not possible to get every Mega Stone in either version of the game, so you'll need to attach Mega Stones to Pokémon and trade them to your current game to earn get a full set.
Main Game Mega Stones
- Abomasite: At the end of your trip through the Frost Cavern you'll meet an Abomasnow that's being hassled by Team Flare. Drive off the Grunts, then speak to the Abomasnow to receive the Abomasite.
- Aerodactylite: Visit the Fossil Lab in Ambrette Town after visiting Glittering Cave for the first time. A Scientist on the right side of the Fossil Lab will give you the Aerodactylite. You can also use the Fossil Lab to turn an Old Amber from Glittering Cave into an Aerodactyl, allowing you to make early use of this Mega Stone.
- Ampharosite: North of Route 12, just outside Coumarine City, you'll find Azure Bay. An old man on the first small island you see will hand over Ampharosite if you speak to him.
- Blazikenite: The very first Mega Stone you can receive, Blazikenite is given to you via the Mystery Gift option on the main menu of your game. Choose Mystery Gift, then Receive Gift, then Via Internet. The next Pokémon Center attendant you speak to will then give you a Torchic, which has the Blazikenite attached.
- Gengarite: Travel to Lavarre City. There's a Hex Maniac in the northwest of the city will give you the Gengarite.
- Lucarionite: Once you've beaten the fourth gym in Shalour City and climbed the Tower of Mastery you'll need to fight Gym Leader Korrine, and she'll lend you one of her Lucario. It has Lucarionite attached to it, and once the fight is over she'll give you the Pokémon and the Mega Stone.
- Venusaurite, Blastoisite, and Charizardite (X and Y): You'll first receive one of these three Mega Stones on your initial visit to Professor Sycamore's Pokémon Lab in Lumiose City. He'll allow you to choose a Venusaur, Squirtle, or Charmander, and will give you their related Mega Stone as well. To receive the other two you'll need to purchase them from the Stone Emporium on Vernal Avenue. Regardless of how you get these Mega Stones, you'll only receive the Charizardite type that matches your current version of Pokémon X and Y.
Post-Game Mega Stones
The following Mega Stones can only be received once you've beaten the game by defeating the Champion. Unless noted otherwise, there are two other conditions you must fulfill to even see these Mega Stones on the map:
- You need to upgrade your Mega Ring. Travel to Kiloude City, participate in a handful of Battle Maison skirmishes, then meet Calem / Serena in the park in the north of the city. Beat them in a fight and they will tell you to meet Professor Sycamore in Anistar City. You'll find him by the Anistar Sundial, where he will upgrade your Mega Ring.
- You need to visit specific areas between 8 pm and 9 pm. The Mega Stones will only show up during this hour, appearing as sparkles of light. If the Mega Stone you're hunting doesn't appear, try leaving the area and coming back.
You may find different Mega Stones in some locations, depending on the version of the game you're playing.
- Absolite: While upgrading your Mega Ring you'll need to fight Calem / Serena. They will give you the Absolite after you beat them.
- Aggronite / Tyranitarite: Visit Cyllage City Gym and climb up to the second level. At a dead end on the right side is either Aggronite (Pokémon X) or Tyranitarite (Pokémon Y). Found between 8 pm and 9 pm.
- Alakazite: Head to Reflecting Cave via the Shalour City entrance. Head down to the lower floor and check the north end to find a hidden room. You'll see the entrance via the glass reflections on the walls. Inside you'll find a beam of light illuminating the floor. The Alakazite is sitting in the light. Found between 8 pm and 9 pm.
- Banettite: Look for water on the east side of Route 22. Beyond it you'll find a waterfall that you can descend with Waterfall. There's a big patch of flowers down here, and near them is a rock that you can enter to find the Chamber of Emptiness. You'll find the Banettite inside the chamber. Found between 8 pm and 9 pm.
- Garchompite: Head to Victory Road and explore the first area that's filled with ruins. West of where you emerge you'll find a wall to Rock Smash. There's a tower on the other side, and the Garchompite is sitting in front of it. Found between 8 pm and 9 pm.
- Gardevoirite: Visit the café in Lumiose City where you first met both Diantha and Lysandre. It's to the left when you leave the Pokémon Lab. Diantha is here, and she'll offer to trade you a Ralts for any Pokémon you like. The Gardevoirite is attached to the Ralts.
- Gyaradosite: Check outside the Hotel Couriway in the south of Couriway Town. East of the Hotel are several small waterfalls. The Gyaradosite is sitting in front of one of the waterfalls. Found between 8 pm and 9 pm.
- Heracronite / Pinsirsite: Revisit Santalune Forest, just north of Route 2 at the very beginning of the game. North of the entrance you'll find either Heracronite (Pokémon X) or Pinsirite (Pokémon Y). Found between 8 pm and 9 pm.
- Houndoomite / Manectricite: Head to Dendemille Town and leave via the western gate. Head south to Route 16 and follow the path until you see two Roller Skaters doing laps around a rock. Sitting in front of the rock is either Houndoomite (Pokémon X) or Manectricite (Pokémon Y). Found between 8 pm and 9 pm.
- Kangaskhanite: Head into Glittering Caves from the Route 9 entrance. Down the first right turn from the entrance is the Kangaskhanite, at a dead end. Found between 8 pm and 9 pm.
- Mawilite: Revisit Shabboneau Castle, the northern fortress in tiny Camphrier Town. The Mawilite is up on the second floor. Found between 8 pm and 9 pm.
- Medichamite: Visit Laverre City and you'll find a bridge in the middle of the city. There's a well beside the bridge, and the Medichamite is sitting in front of the well. Found between 8 pm and 9 pm.
- Mewtwonite (X and Y): Revisit Pokémon Village, the side area deep within Route 20. In the north of this small area you'll find a cave that was previously blocked. You can now enter, and a Mewtwo is waiting inside. Catching the Mewtwo will earn you either Mewtwonite X or Mewtwonite Y, depending on your version of the game.
- Scizorite: Pay the Abomasnow at the very end of Frost Cavern, the one that gave you the Abomasite, another visit. The Scizorite is behind the Abomasnow. Found between 8 pm and 9 pm.