Mega Evolution

Mega Evolution (Japanese: メガシンカ Mega Evolution) is a transformation affecting Pokémon that was introduced in Generation VI. Mega-Evolved Pokémon are identified by having "Mega" in front of their name.

Discovered in Kalos

Kalos Mega Evolutions
Pokémon	Sprite	Type	Ability		Sprite	Type	Ability	Mega Stone
Venusaur		Grass Poison	Overgrow Poison Touch Chlorophyll			Grass Poison	Thick Fat	Venusaurite
Charizard		Fire Flying	Blaze Super Luck Solar Power			Fire Dragon	Tough Claws	Charizardite X
						Fire Flying	Drought	Charizardite Y
Blastoise		Water	Torrent Multiscale Rain Dish			Water	Mega Launcher	Blastoisinite
Alakazam		Psychic	Synchronize Inner Focus Magic Guard			Psychic	Trace	Alakazite
Gengar		Ghost Poison	Cursed Body			Ghost Poison	Shadow Tag	Gengarite
Kangaskhan		Normal	Early bird Scrappy Inner Focus			Normal	Parental Bond	Kangaskhanite
Pinsir		Bug	Early bird Scrappy Inner Focus			Bug Flying	Aerilate	Pinsirite
Gyarados		Water Flying	Intimidate Moxie			Water Dark	Mold Breaker	Gyaradosite
Aerodactyl		Rock Flying	Rock Head Pressure Unnerve			Rock Flying	Tough Claws	Aerodactylite
Mewtwo		Psychic	Pressure Unnerve			Psychic Fighting	Steadfast	Mewtwonite X
						Psychic	Insomnia	Mewtwonite Y
Ampharos		Electric	Static Plus			Electric Dragon	Mold Breaker	Ampharosite
Scizor		Bug Steel	Swarm Technician Light Metal			Bug Steel	Technician	Scizorite
Heracross		Bug Fighting	Swarm Guts Moxie			Bug Fighting	Skill Link	Heracronite
Houndoom		Dark Fire	Early Bird Flash Fire Unnerve			Dark Fire	Solar Power	Houndoominite
Tyranitar		Rock Dark	Sand stream Unnerve			Rock Dark	Sand stream	Tyranitarite
Blaziken		Fire Fighting	Blaze Justified Speed Boost			Fire Fighting	Speed Boost	Blazikenite
Gardevoir		Psychic Fairy	Synchronize Trace Telepathy			Psychic Fairy	Pixilate	Gardevoirite
Mawile		Steel Fairy	Hyper Cutter Intimidate Sheer Force			Steel Fairy	Huge Power	Mawilite
Aggron		Steel Rock	Sturdy Rock Head Heavy Metal			Steel	Filter	Aggronite
Medicham		Fighting Psychic	Pure Power Telepathy			Fighting Psychic	Pure Power	Medichamite
Manectric		Electric	Static Lightningrod Plus			Electric	Intimidate	Manectite
Banette		Ghost	Insomnia Frisk Cursed Body			Ghost	Prankster	Banettite
Absol		Dark	Pressure Super Luck Pressure			Dark	Magic Bounce	Absolite
Garchomp		Dragon Ground	Sand Veil Rough Skin			Dragon Ground	Sand Force	Garchompite
Lucario		Fighting Steel	Steadfast Inner Focus Justified			Fighting Steel	Adaptability	Lucarionite
Abomasnow		Grass Ice	Snow Warning Soundproof			Grass Ice	Snow Warning	Abomasite

Discovered in Hoenn

Hoenn Mega Evolutions
Pokémon	Sprite	Type	Ability		Sprite	Type	Ability	Mega Stone
Beedrill		Bug Poison	Swarm Sniper			Bug Poison	Adaptability	Beedrillite
Pidgeot		Normal Flying	Keen Eye Tangled Feet Big Pecks			Normal Flying	No Guard	Pidgeotite
Slowbro		Water Psychic	Oblivious Own Tempo Regenerator			Water Psychic	Shell Armor	Slowbronite
Steelix		Steel Ground	Oblivious Own Tempo Sheer Force			Steel Ground	Sand Force	Steelixite
Sceptile		Grass	Overgrow Sniper Unburden			Grass Dragon	Lightningrod	Sceptilite
Swampert		Water Ground	Torrent Sap Sipper Damp			Water Ground	Swift Swim	Swampertite
Sableye		Dark Ghost	Keen Eye Harrier Prankster			Dark Ghost	Magic Bounce	Sablenite
Sharpedo		Water Dark	Rough Skin Streamlined Speed Boost			Water Dark	Strong Jaw	Sharpedonite
Camerupt		Fire Ground	Magma Armor Solid Rock Anger Point			Fire Ground	Sheer Force	Cameruptite
Altaria		Dragon Flying	Natural Cure Cloud Nine			Dragon Fairy	Pixilate	Altarianite
Glalie		Ice	Inner Focus Ice Body Moody			Ice	Refrigerate	Altarianite
Salamence		Dragon Flying	Intimidate Moxie			Dragon Flying	Aerilate	Salamencite
Metagross		Steel Psychic	Clear Body Light Metal			Steel Psychic	Tough Claws	Metagrossite
Latias		Dragon Psychic	Levitate			Dragon Psychic	Levitate	Latiasite
Latios		Dragon Psychic	Levitate			Dragon Psychic	Levitate	Latiosite
Rayquaza		Dragon Flying	Air Lock			Dragon Flying	Delta Stream	Know Dragon Ascent
Lopunny		Normal	Cute Charm Klutz Limber			Normal Fighting	Scrappy	Lopunnite
Gallade		Psychic Fighting	Steadfast Justified			Psychic Fighting	Inner Focus	Galladite
Audino		Normal	Healer Regenerator Klutz			Normal Fairy	Healer	Audinite
Diancie		Rock Fairy	Clear Body			Rock Fairy	Magic Bounce	Diancite

Discovered in Altaris

Altaris Mega Evolutions
Pokémon	Sprite	Type	Ability		Sprite	Type	Ability	Mega Stone
Altaran Charizard		Fire Dragon	???			Fire Dragon	Disenchant	Charizardite S
Altaran Beedrill		Bug Ground	Hyper Cutter Swarm Long Reach			Bug Ground	???	Beedrillite S
Altaran Pidgeot		Ice Flying	Keen Eye Piscivore Refrigerate			Ice Flying	???	Pidgeotite S
Ninetales		Fire	Flash Fire Drought			Fire Ghost	Solar Power	Nintalesite
Alolan Ninetales		Ice Fairy	Snow Cloak Snow Warning			Ice Fairy	Frigid	Nintalesite A
Arcanine		Fire	Intimidate Flash Fire Justified			Fire Dragon	Levitate	Arcanite
Altaran Arcanine		Fire Water	Oilslick Intimidate Corrosion			Fire Ice	Levitate	Arcanite S
Altaran Gyarados		Water Dragon	Moxie Swift Swim Sheer Force			Water Dragon	Eliminate	Gyaradosite S
Vaporeon		Water	Water Absorb Hydration			Water Flying	Drizzle	Vaporite
Jolteon		Electric	Volt Absorb Quick Feet			Electric Steel	Lightning Rod	Joltite
Flareon		Fire	Flash Fire Guts			Fire Rock	Solid Rock	Flareite
Espeon		Psychic	Synchronize Magic Bounce			Psychic Ghost	Serene Grace	Espite
Umbreon		Dark	Synchronize Inner Focus			Dark Poison	Corrosion	Umbrite
Lugia		Psychic Flying	Pressure Multiscale			Psychic Water	Refreshing Storm	Lugite
Mightyena		Dark	Intimidate Quick Feet Moxie			Dark Ground	Frightful Presence	Mightyenite
Altaran Manectric		Electric Dark	Galvanize Berserk Speed Boost			Electric Dark	Sheer Force	Manectite S
Flygon		Ground Dragon	Levitate			Bug Dragon	Compound Eyes	Flygonite
Altaran Garchomp		Dragon Water	Swift Swim Pressure			Dragon Water	Leviathan	Garchompite S
Leafeon		Grass	Leaf Guard Chlorophyll			Grass Fighting	Flower Veil	Leafite
Glaceon		Ice	Snow Cloak Ice Body			Ice Ground	Slush Rush	Glacite
Hydreigon		Dark Dragon	Levitate			Dark Dragon	Faithless
Sylveon		Fairy	Cute Charm Pixilate			Fairy Bug	Misty Surge	Sylvite