Upon seeing Serena, the legendary Xerneas studied her, countless times. Serena sent out Spitfire, anticipating a fight... But Xerneas calmly nodded at her, not detecting any malice. Sensing that it wanted to escape, Serena knew exactly what she had to do.
She had to capture Xerneas to stop the machine. And with one Quick Ball, she completed the task.
Xerneas was powerful. Surely Serena can use it to sweep through person after person... But out of the goodness in her heart, she kept the legend tucked away in the PC, never to be unleashed.
Calem and Shauna reunited with Serena, relieved that the legend was caught... But Lysandre wasn't as thrilled. Armed with a strange invention, he stepped up to battle Serena once more to get back Xerneas. The battle went smoothly... But Lysandre had a scary weapon up his sleeve.
The Gyarados that he had was capable of Mega Evolution, boosting its capabilities. Serena, wanting to match its power, sent Spitfire out and Mega Evolved him, and the two fought valiantly. Unfortunately, the stress ultimately took its toll on Spitfire, leaving him open for Gyarados to attack him with a brutal Outrage, ripping Spitfire to shreds and throwing him through the ceiling and out of the base. Rollodillo finished him off soon after.
Lysandre, not deterred, used what little power the weapon had to grant Serena and her friends eternal life... But the weapon's attack rebounded back upon itself, destroying the weapon, Team Flare's HQ, and Lysandre along with it.
The group of friends reunited, relieved that the worst was over, as they went off on their own journeys. AZ even approached, freed from his prison, offering his gratitude for stopping the weapon, but still lamenting over the revived Pokémon... His Pokémon.
It just hit Serena here and then; AZ was the former king of Kalos, still alive after 3,000 years due to the influence of the weapon.
As she looked down, Serena noticed something else rolling towards her...
Spitfire's Mega Stone.
Looking over, she noticed her poor Charizard, away from the rubble but heavily injured and beaten, in critical condition from what Lysandre's Gyarados threw at him. Serena sat by him, shedding tears as Charizard laid his head on her lap, struggling to breathe. Serena tried to soothe him by reminiscing the adventures the two spent since Lumiose City, which made Spitfire smile... Knowing his time was nearing, he gave Serena's hand one final weak lick before his injuries overcame him, dying by Serena's side.
Serena kept her Charizard close for a while before finding some residents to help bury the lizard within the town. Paying her respects with more tears in her eyes, Serena went off to bed, both anticipating her next step in her adventure and wondering what she can replace Spitfire with as she continues her journey...
