Legendary Pokémon

Like the other games, there are numerous Legendary Pokémon to be found within the Kalos region. These Pokémon are the most powerful ones around and are very difficult to capture

Stationary Pokémon

#716 Xerneas & #717 Yveltal

Location: Team Flare HQ

Method:
Xerneas and Yveltal are found in Pokémon X & Y respectively as you play through the game's narrative. In it, they are being used by Team Flare in order to try and wipe out the world to make it begin again beautifully. However, you will be able to stop them and when you do so, you automatically battle Xerneas/Yveltal.

Xerneas
Level 50
OT:Yours
ID:Yours
Ability:Fairy Aura
Hold Item:
None
??? Nature.
Date of Receiving
Team Flare's HQ. Caught at Lv. 50
Gravity
Geomancy
Moonblast
Megahorn
Yveltal
Level 50
OT:Yours
ID:Yours
Ability:Dark Aura
Hold Item:
None
??? Nature.
Date of Receiving
Team Flare's HQ. Caught at Lv. 50
Snarl
Oblivion Wing
Disable
Dark Pulse

#718 Zygarde

Location: Terminus Cave

Method:
After defeating the Elite Four, you can go deeper through Terminus Cave until you find the final basement. In this basement, you will find a Pokémon in its slumber. Interact with it and it will attack. It is a Dragon/Ground-type so plan accordingly.

Zygarde
Level 70
OT:Yours
ID:Yours
Ability:Aura Break
Hold Item:
None
??? Nature.
Date of Receiving
Terminus Cave. Caught at Lv. 70
Crunch
Earthquake
Camouflage
Dragon Pulse
#150 Mewtwo

Location: Pokémon Village

Method:
After defeating the Elite Four, a man will stop blocking a cave within the Pokémon Village. In this cave, you will find nothing but a solitary Mewtwo with its back against the door. Interact with it and a cutscene will occur where it notices you and attacks. After defeating it, you will receive the Mewtwonite item depending on your version.

Mewtwo
Level 70
OT:Yours
ID:Yours
Ability:Pressure
Hold Item:
None
??? Nature.
Date of Receiving
Unknown Dungeon. Caught at Lv. 70
Recover
Psychic
Barrier
Aura Sphere

Roaming Pokémon

#144 Articuno, #145 Zapdos, #146 Moltres

Location: Grass & Water of Kalos; Sea Spirit's Den

Method:
After defeating the Elite Four, several Pokémon start to roam the region, Articuno, Zapdos and Moltres. However, you will only get one: Articuno if you picked Chespin, Zapdos if you picked Fennekin and Moltres if you picked Froakie. However, a change has taken place compared to previous games. These Pokémon will automatically flee from combat, before you even get a chance to select a move. You can track their location with the Pokédex. After they have run from you over a dozen times, they will go to the Sea Spirit's Den where you can finally battle them

Articuno
Level 70
OT:Yours
ID:Yours
Ability:Pressure
Hold Item:
None
??? Nature.
Date of Receiving
Sea Spirit's Den. Caught at Lv. 70
Ice Beam
Reflect
Hail
Tailwind
Zapdos
Level 70
OT:Yours
ID:Yours
Ability:Pressure
Hold Item:
None
??? Nature.
Date of Receiving
Sea Spirit's Den. Caught at Lv. 70
Agility
Discharge
Rain Dance
Light Screen
Moltres
Level 70
OT:Yours
ID:Yours
Ability:Pressure
Hold Item:
None
??? Nature.
Date of Receiving
Sea Spirit's Den. Caught at Lv. 70
Safeguard
Air Slash
Sunny Day
Heat Wave