The first time they found out, he meant to use it.

Tony used his thrusters to hover above a robot in an alley way, getting ready to take it down with his lasers. After he took care of the lone bot, he flew back out into the main road, and stopped in shock. There were too many of them. An army of robots marched down the road, swarming over cars and obstacles. Tony spotted his team, a small group being overrun by the horde of robots. Tony asked JARVIS to run a scan on the probability of the team dying and the probability of successfully getting rid of all the robots.

"Probability of death – 78%

Probability of success – 34%" JARVIS' British tone informed Tony of the team's chances. Tony shook his head. He couldn't let them die. But the only way he could get rid of that many robots was... Tony tilted his head and looked down at the glow of his Arc Reactor.

The Unibeam.

Tony took a deep breath, and then activated his com.

"Hey guys."
"Tony this isn't the time-"

"Get away. Get at least twenty feet away from the bots."
"What? Why?"
"Just go. I have a plan." Tony watched solemnly as the team scurried away. He landed around fifteen feet away from the bots, and took a big breath. "It was nice working with you guys."
"What are you going to die?" Clint jokingly said.
"Hopefully not." Tony heard Clint's voice trail off.

"Oh…"

Tony took a big breath, and told JARVIS to activate the Unibeam and divert all power to it. Tony closed his eyes, and felt the power of the Unibeam power up. As it fired up, Tony swung the Unibeam in an arc, taking out the robots in waves. As the robots got blasted into oblivion, Tony fell to his knees, but he kept on going at it, taking out the last of the robots. He could hear the voices of his team in his com, but he kept on going. His vision was going black around the edges, and he could barely hold his weight on his knees. As the last robots exploded, Tony heard the faint voice of JARVIS echo in his helmet.

"Sir the suit is powering down. Your Arc Reactor is heavily damaged." JARVIS then shut off, and the suit went dark. Tony heard the sound of his suit hitting the ground, and uttered one final word before passing out.

"Oh crud."

The world went black. Or blacker then it already was.

Team POV-

The team rushed over to Tony, rolling him over, and gasped in shock. The Arc Reactors' light was out. Hulk quickly tore off the chest plate, and the faceplate, and they saw that Tony's face was slack, and…

He wasn't breathing.

The team rushed into action, pulling the suit off of him, while Natasha called for SHIELD medics. Clint performed CPR, and got Tony breathing again. Steve hoisted Tony up, bridal style, and carried him over to the quinjet. As they arrived at the helicarrier, a group of medics rushed a stretcher over, and ported Tony away, leaving the team to go explain what happened to Fury.

This was going to be fun,

AN- I know I know. VERY short. But, please review for more? =3 Hope I got everything right!