During a recently released video at Gamescom 2014, Junichi Masuda, game director of many Pokémon titles including Pokémon X & Y, officially unveiled Mega Audino, the first Mega Evolution of a generation V Pokémon to be featured in the upcoming Pokémon Omega Ruby & Alpha Sapphire.
Mega Audino will possess the Normal/Fairy typing and will have the ability Healer, which has a 30% chance of healing an ally's status condition in a double battle.
Following the Mega Evolution, Mega Audino will recieve a boost in the defense and special defense stat. It was also shown during the trailer that Audino knew the move Misty Terrain, a move it could not learn prior to Omega Ruby & Alpha Sapphire.
This announcement officially confirms half of the recent leak by the Korean Pokemon website that showcased both Mega Audino, as well as Mega Slowbro.
You can check out the full trailer below: