Welcome to Kalos skies. Normally, a place flocking with flying types of numerous species but now? It's just a domain of chaos with 2 Giratinas fighting 1 Giratina.
Obviously, these 2 Giratina's are Eve and Risa using True Morph. An ability exclusive to the species Mew due to them perfectly having the genetics of all Pokemons. They can transform into any Pokemon they have seen retaining their own abilities along with the target's Racial Abilities and Abilities.
Usually, using this move against an equal means the enemies defeat since you're now a better version of them. However, few Pokemons can break this rule. Uber Pokemons Uber ability won't be copied and self-made abilities can't be copied either, even if it's just a modification of a Racial Ability or Ability.
There are also those with training abilities in those slots, like Lucario having Aura in its Racial Ability. Although Mew can copy, Mew has to train it from scratch.
So what's the disadvantage of transforming into one of the oldest Pokemons?
The disadvantage can't compare with the merits actually.
A Giratina with no changes in its Racial Abilities and Ability is still an undefeated powerhouse, a Pokemon that can still fight Dialga and Palkia at once and win.
Though it can't enter Origin Forme if it lacks the energy to do so and because of the massive energy expenditure and the abilities, Giratina releases most Mew won't transform into him against individuals that can block its connection with the Universe for Universe Spirit to work.
Dialga, Palkia, and Giratina can burn out the energy of SSS in an hour. And that's without adding the changes and addition of abilities they added in their long life.
Their EX-energy is estimated to be millions of times higher than SSS. The energy they have far surpasses what most universe does carry, yet all 3 of them combined are only 20% of the energy of this universe.
As for why they don't transform into Arceus or Necrozma? To transform into Arceus you'll need to obtain the same energy required to transform into Origin Formes of Dialga, Palkia, and Giratina. To transform into Necrozma is easy, but one will be in its Prism state which strength isn't that impressive even if one absorbs and sun or million.
This makes one wonder how did Necrozma create this form in the first place?
Establishing just how overpowered a Mew's True Morph is one must understand even with them retaining their ability they're only able to draw tie with Giratina, despite it not entering Uber Forme.
However, just like how difficult it is for Mew's to get that energy to enter any of 3's Origin Forme. It's difficult for Giratina too to enter it outside Distortion Realm, not impossible, but shouldn't be used until he's certain he can eliminate these threats.
However, who knows how long this tie will last?
'Not even a minute,' Giratina murmured.
The rate at which Risa grows is almost limitless. At the start of the fight, Giratina was crushingly winning but as the fight progressed, Risa improved to the point where she can use Chaos as smoothly as 'Pink'. Meaning she had promoted it to Low-Expert in such a short time frame.
I suppose a week and a half isn't short but for existences like Giratina who live in the Distortion Realm, that's no different from an hour.
Still... Giratina didn't expect Arceus to pass on Positive emotion to Risa, wasn't this going to be used as a trump card against Necrozma? This is based on the fact, that there wasn't a sighting of a Pokemon having an ability of Positive emotion manipulation at the level of Corruptor.
Risa improving in that ability, Heavenly Virtues aren't far from mastering despite only receiving this recently.
Blessings, Purification, and Protection are just one of the many effects that can make from it. The number of possibilities Heavenly Virtues made Risa excited, it's rare for her to take so long mastering an ability she's focusing on.
Together with Heavenly Virtue and Chaos manipulation along with Eve's Order manipulation they can completely restrain Giratina's Chaos manipulation. As long as Risa Chaos upgrades one more time, Giratina will be pushed back.
Which occurred... right about now.
The Chaos Domain covering the sky shattered under the combined effort of Risa and Eve. Chaos Distortion attempts to revert the damage but once more was blocked by the two's teamwork.
"Feel my wrath!" Risa shouts clearly showing a happy smile despite her words.
Her body was wrapped in Blessing of Speed of Protection from Chaos and flew towards Giratina her mouth coated in Positive energy intending to bite him.
Eve sensing Giratina about to counter-attack use Order: Power Scale. The difference between the Dragon Pulse+ wrapped in Chaos energy and Risa's Happy Bite were equalized, significantly increasing the power of Happy Bite.
With his Chaos Pulse+ blocked by the Protection of Chaos that previously couldn't withstand a strike pissed Giratina off. Unable to dodge Risa's attack he slightly changes Risa's aim from his neck to his leg.
*groan*
The pain he felt wasn't that much actually, but feeling how his anger faded and was replaced with pure happiness wasn't pleasant in the slightest.
"Order: Chaos Restriction," Being an entity of Chaos this is no different from restricting Giratina's movements, which wasn't the best moment for him when he sensed the large output of Positive energy, and happiness, coursing through this soul.
His anger faded and different positive emotions began to hit him which would've made the previous him roar in frustration.
This is Arceus's final attempt, a desperate attempt to retain a top fighting power for the incoming war. As long as Giratina feels guilt for his actions, he'll only be punished but...
*sigh*
'Pity,' Arceus thought.
Suddenly a beam of light slams into Giratina's forehead, providing him with a new ability.
Chain of Command: Max.
Due to a lot of information locked, Mike's System couldn't confirm whether or not it could've done what it could have done in-game.
Chain of Command: Max compromise of one of each Procedure Unown. Unown A, Unown B, and so on.
Back in Diamond and Pearl, with the aid of the Unowns can call forth Arceus. But that's not its actual function.
It creates a staircase leading to the Pokemon System, the core of the Pokemon Universe. This is why Arceus will appear whenever this effect is used, to prevent fools who thought they can control or destroy this world.
Now question is, which one is Giratina?