READ THE DESCRIPTION!
This 3 event pokemon are supposed to be received in future movies/Nintendo events/Mystery Gift, when you have them in your party they unlock certain in-game events, which let you get Genesect items, learn a new move for Keldeo & Meloetta, and change Meloetta`s Forme.
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* Genesect was supposed to be revived from a fossil and powered up by Team Plasma to create the most powerful Pokemon ever. However, N despised of the project because he felt that any Pokemon tampered with science has lost its pureness, which was why the project was abandoned. But the scientist kept working on it, and he's still upset that N denied of his talent. After you beat the Scientist he will let you get the "Drives" to change the type of Genesect`s signature move "Techno Blast".
[Techno Blast]
Normal/Special
Power: 85
Accuracy: 100
PP: 5
Effect: The user fires a beam of light at its target. The type changes depending on the Drive the user holds.
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2:51
* Keldeo was raised by the 'musketeer' trio when it became an orphan due to an forest fire in the past. The event Keldeo triggers involves you bringing all three members of the trio with you, and together they will teach Keldeo the move "Secret Sword".
[Secret Sword]
Fighting/Special
Power: 85
Accuracy: 100
PP: 10
Effect: The user cuts with its long horn. The odd power contained in the horn does physical damage to the target.
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5:24
* Meloetta's usual forme is called the Aria Forme (Normal/Psychic) while the red haired one is called the Pirouette Forme (Normal/Fighting). When you bring Meloetta to the Cafe in Castelia City, it will trigger an event from the guitarist. He will offer to teach your Meloetta the move "Relic Song". With this move, Meloetta will be able to switch between its 2 formes in battle.
Some 'background' on Meloetta according to the guitarist's speech:
"Beautiful melodies will bring people happiness while sad ones will bring people down. That is the power of a melody. The scent of luck that breezes around you has made me remember this melody from the depths of my memory. This is a song that my mother loves... an ancient nostalgia... please listen to it. From what my mother told me, a Pokemon who played the melody danced its light steps to fill people's hearts. However, when the world was drowned in sorrow, this Pokemon lost its melody, and the 'Red Shoes' were also gone... When you walked through that door, I remembered this melody. The Pokemon started dancing its steps to its lost melody again. You brought in this, you are an amazing kid."
[Relic Song]
Normal/Special
Power: 75
Accuracy: 100
PP: 10
Effect: It may put the opponent to Sleep [Effect Rate: 10%](Meloetta`s ability is "Serene Grace", so its effect rate is 20%)
Effect 2: Change Meloetta`s forme.
When Meloetta is in Pirouette Forme, Meloetta`s forme will change again to normal (Aria Forme) when:
- You use Relic Song again
- Switch out Meloetta
- The battle ends
STATS
Aria Forme (Normal/Psychic)
HP: 100
Atk: 77
Def: 77
SpA: 128
SpD: 128
Spe: 90
Pirouette Forme (Normal/Fighting)
HP: 100
Atk: 128
Def: 90
SpA: 77
SpD: 77
Spe: 128
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Source of the event pokemon backstory: http://www.serebiiforums.com/showpost.php?p=11642133&postcount=233
