BLASTOISE MEGA EVOLUTION

TYRANITAR MEGA EVOLUTION

AGGRON MEGA EVOLUTION

GYRADOS MEGA EVOLUTION

GARCHOMP MEGA EVOLUTION

AMPHAROS MEGA EVOLUTION

CHARIZARD MEGA EVOLUTION

LUCARIO MEGA EVOLUTION

 BLAZIKEN MEGA EVOLUTION 
This pokemon located in the Ist and IInd episode of POKEMON X AND Y.In the first episode ash saw this pokemon's shadow and in the second episode this blaziken mega evolution saves ash and pikachu from falling from the top of a building but still this pokemon is mysterious to ash. 

ASH'S ALL POKEMON

Froakie first appeared in Kalos, Where Dreams and Adventures Begin! where he observed Pikachu shocking Bonnie, Clemont and Ash outside the Lumiose Gym. Froakie protected Pikachu from its own Electro Ball, which had been rebounded by Wobbuffet's Mirror Coat. At the end of the episode, Froakie appeared in front of Sycamore's lab with a Poké Ball and asked Ash to catch it, which Ash did so gladly. Froakie knows Water Pulse, Bubble, Pound, Quick Attack, and Double Team

Fletchling first appeared where it swooped down to take a berry that Bonnie gave to a Dedenne. Afterwards, Froakie challenged it to a battle but Fletchling's speed and strength proved to be too much for Froakie. Froakie was finally able to land a hit on the Tiny Robin Pokémon. Ash threw a Poké Ball at it but the capture was unsuccessful. Froakie continued the battle with Fletchling and landed a hit with Water Pulse. Ash threw another Poké Ball at Fletchling and managed to catch it this time. Fletchling knows Double Team, Peck, Razor Wind, and Steel Wing.