During the special airing of Pokémon Origins within Japan, a new Mega Evolution was showcased. This is an alternate Mega Evolution of Charizard. This Mega Charizard is exclusive to Pokémon X and is called Mega Charizard X.
After many years Charizard is finally a Fire/Dragon type and receives a very powerful ability called Rough Claws which increases all Physical damage dealt.
Mega Charizard by Nintendo, Gamefreak