Duel, the Strength of Chaos

Ondreas drew his sword, and prepared to bring it down on the creatures head. However it spun around and its tail lashed out, Ondreas avoided it and severed the creatures tail, then kicked it in the face. The creature went spiraling into the air, and Ondreas spun around, and took aim.
"Focus Beam" he shouted and a thin beam of black energy with blue and red dots flew at the creature. It collided, and went straight through the creature. Slowly the creature fell from the sky, and hit the earth.
Satisfied, Ondreas walked to the shuttle to help the survivors, but then felt a sharp pain in his back. He then saw himself fly towards a nearby lake and fly into it. He floated there for a second shocked, before he saw a green light flying towards him. He kicked the bottom of the lake and flew out just in time, as the beam collided with the lake, and a shower of water followed. Ondreas spun around to see the creature flying at him. Grinding his teeth, he flew forward. The 2 collided with enough force that the ground quacked.
"Who are you" Ondreas spat out. "Cell" it replied, as its tail slowly came up behind him. Ondreas spun, grabbing Cell by the neck and threw him towards the ground.
"I have to finish this" he said to himself. "Ne-go-me-ga" he whispered, and 9 copies of him appeared. 3 transformed into Malas, their hair smoking with darkness and turning black, and black Armour appeared in place of their clothes. the others transformed into Sanctus, their hair shining and gaining white identical Armour to Malas. The Malas's teleported around Cell, and started to fight him into the air. The 6 Sanctus's then started to charge and flew at Cell from different directions. The Malas's grabbed Cell and faded as soon as the Sanctus's surrounded him.
"Rending Storm" They Shouted as they all delivered a rending wave onto Cell. Cell started to scream in pain as the raw energy started to rear him apart. Finally they stopped and faded, and Cell dropped to the ground his 2 arms, 1 leg and tail gone or bloody ruins. Ondreas flew to the shuttle and picked it up, the passengers still unconscious, and flew it to the nearest city placing it on the border of the suberb and creating an explosion to catch the attention of the authorities. He then looked at the sky and flew in a random direction, hopping to find a warrior that could defeat him.

I'm just going to hope you didn't mean Cell as in the actual Cell in DBZ. I don't want to use any DBZ related characters in this story

This was on 1 of Cells many prestory raids, and Sanctus dissapears shortly after and the only reason he won was because cell was low on juice, from the surprise attack (focus beam in the chest) and was also in first form (creepy cicada humanoid).

Nah, hes fighting a cell! Good thing he didnt use his one-cel kamehameha though!