Necrozma roared and lunged at them, but before anyone could do anything, Cosmo dashed ahead, slamming into it.  Cosmo fired off a Moongeist Beam, while Necrozma countered with Prismatic Light.  The Lunala was caught off guard by the attack as Necrozma pounced, pinning it down and absorbing Cosmo into itself, changing it's form into a shiny Dawn Wings.  "Cosmo no!" Chuck called out, running ahead to it and sending out his new Lopunny, which he Mega Evolved.  "Lopunny, Brutal Swing!" Chuck cried out.  The Mega Lopunny leapt into the air and gave a spin before slamming Necrozma with her leg, sending it crashing into a nearby tower.  Necrozma roared and flew up to the top, while Chuck chased after it, going up the stairs of the tower.