He blinked as he watched her ascend to fight Ansem, and then saw the Darkside like creature form quite an impressive attack. It was not impressive enough though. "Really.. take this!" He suddenly threw out his hand and white lightning streaked from it hitting all pieces of the attack. "Now try this!"
Suddenly, he was gone, but quickly appeared next to the creature, as he held out his hand. "Stopga!" Then, once the creature was immobile, "THUNDAGA!" Since the creature could not move, it let out a loud gurgle kind of scream from pain as the thunder attack hit it full on. It then raged out and let out a huge dark spasm kind of thing, like some kind of black mist.
Zexion felt paralyzed. He tried moving as the figure slowly moved in, and then, it sunk its claws into his chest. He screamed in pain ,and suddenly found the ability to move, which he put to good use. He grabbed the creatures hands and ripped them from his chest as he suddenly smirked at him, and flipped up in the air, releasing one hand as he made his keyblade appear, and a black grey light appeared from it shooting straight down to the ground below him and the shadow like creature.
"Trinity Limit!"
Suddenly, a blinding black and red light surrounded their area, and was gone in an instant, along with the shadow creature, as Zexion smiled, falling back on the ground, and landing hard on his back. He smiled up at the sky, and saw Reina and Ansem fighting. Blood trickled from his lips, as he found himself too exhausted to cast a curaga. He figured death was more than likely coming for him. "Get him Reina.."