Both the fighters were closing in on Iceman at speeds that no normal human could comprehend. Then, it happened. In a split second, Majin_Sasuke tripped, having bent too far forward in his dash. During the half second that Majin_Sasuke was in the air, Iceman ran forward and pushed his hand through the ninja-to-be's chest and out the other side. Vejimaru looked on with a cool expression on his face, while the crowd that had formed around the amazing battle gasped. Somebody screamed. Majin_Sasuke hung limply from Icemans arm, which was now covered in blood. Iceman pulled him off of his arm and threw him to Vejimaru's feet. Vejimaru chuckled to himself.
"He's still alive, though barely, and that shall be your downfall, Iceman"
As he said this, Vejimaru picked up the ninja-in training by the scruff, and held him high above his head. In a flash of blinding light, Majin_Sasuke had disappeared.
"Wh-where did he go?" Iceman asked in bewilderment, looking around.
"I have absorbed his energy, the energy that shall power my transformation!" Vejimaru roared. However, before Vejimaru could even move, Iceman was in front of him. Iceman swept Veji's feet out from beneath him with a smooth kick, and while he was hanging in the air, launched a ferocious uppercut which launched him high into the air.
"ICE SHAKER!" Iceman roared as he appeared above Vejimaru, grabbed him by the head, and threw him back to earth. Vejimaru's impact created a crater in the tarmack that was the basketball court, and uprooted several nearby hoops.
"That...is that!" Iceman said to himself. He started to leave, but spun around at the sound of chuckling. Vejimaru was standing at the edge of the crater, completely uninjured. Iceman was expecting a speech, but Vejimaru only said a few words.
"You should consider yourself lucky, I have never transformed for anyone!" Vejimaru snarled. A sudden breeze ruffled Iceman's clothes, and the sky turned dark. Vejimaru's hair started to move, as if it were alive. The whites of his eyes turned blood red, and his irises turned jet black, then disappeared all together. Vejimaru roared, and Iceman leapt in surprise, for the roar seemed too deep for a body such as Vejimaru's. Vejimaru looked at the sky, and as he did so, he started to grow. His face elongated and spouted dirty white fur, which clashed with his snow white fangs. His hands and feet turned into paws, each of which were as big as Iceman, his legs and arms grew bulkier and elongated, and a tail burst out from his rear. After the transfromation was complete, Iceman found himself staring at what appeared to be a white, shaggy dog. A white, shaggy dog that was 50 feet tall.
"This is your last hour alive...enjoy it" Dog-Vejimaru said in a deep voice that shook the heavens. Iceman was momentarily stunned, and while he was gaping, Vejimaru galloped on all fours at Iceman with speed that didn't match his large build, and with a swat of his gigantic paw, had smashed the cold one into the closest building, a boarding home. The home collapsed on top of Iceman, killing its inhabitants at the same time. Iceman pulled himself up and out of the rubble, and powered up to his max. Vejimaru just snarled at the weak power that was coming from Iceman. Vejimaru suddenly stopped, and grinned the way dogs do; showing lots of teeth. He stood up on two legs, much like he did in his human form, and stretched his arms out on either side of him.
"N-n-no..." Iceman said to himself. He knew this technique. Two dark orbs of energy appeared in each of the demon dogs hands, crackling with arcane power. The then bought his hands together in front of him, and combined the balls of energy into one. The very ground was shaking with the level of power that this attack was using. The world suddenly seemed to go silent for Iceman. He didn't hear Vejimaru roar the name of his attack, nor did he hear the screams of the people that had been watching, he just saw the massive amounts of energy that was directed at him.
"Focus...focus...use the chakra deep within...FOCUS!" Iceman said to himself. With the last reserves of his energy, Iceman summoned a shield of spirit...
Vejimaru then fired his blast, a blast that consumed the city block, as well as Iceman. When the smoke cleared, Vejimaru was back in his normal form, fully clothed. He turned to leave and fell to his knees. He had used a vast amount of energy in that attack. Everyone around him lay dead or dying.
"300 dead, 5 billion more to go..." Vejimaru said to himself, looking around at the scene of death. He managed to pull himself to his feet, when he heard someone else doing the same. He turned to see Iceman, pulling himself out of the rubble that used to be a city block.
"We've both drained all our energy," Vejimaru began, and Iceman finished, "so now it comes down to the last man standing"...
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I don't think it's against the rules...