Billionaire, playboy, and inventor [Tony Stark] was near death after shrapnel from one of his own Stark Industries munitions imbedded itself against his heart. To keep himself alive and escape captivity, Tony invented the very first suit of Iron Man armor - powered by arc reactor technology. Since then, Tony has built, modified, and upgraded innumerable variations of the suit, which he uses to protect the world from danger.
Iron Man likes to hit hard and fast, taking out the enemy before they can mount a response. He's a one-man one-two punch, setting up foes with weaknesses to Energy and Explosions, then delivering high-damage attacks.
Believing the Avengers to be a stop-gap measure—a band-aid for the world’s crises until the next big threat, or the bigger, badder one after that wipes them out—Tony Stark has pushed himself to create a more permanent solution. Better gear, faster armors, and an automated Iron Legion to support the team in the field are a start, but the real answer lies in Ultron: a sentient A.I. capable of fighting the battles for them, and continuing the fight long after they’re gone.
Tony Stark built the first suit of Iron Man armor to save his own life, but the armor became more than that—it became a calling. When Stark realized that the deadly weapons his company was producing—weapons he himself had invented—were being proliferated with no system of accountability, he took it upon himself to protect the people he’d put in harm’s way. Now he sees history echoing itself. Only this time? The weapons aren’t bombs, they’re people. They’re his friends. Tony had hoped that the Avengers would be a powerful force for good in the world—and at times, they have been. But there has also been collateral damage. Casualties, and mistakes, and destruction on an unparalleled scale. They need oversight. They need to take responsibility, or Tony fears the very people they’ve been trying to protect will turn on them. Worse? They might be right to.