Loki disdainfully checked his nails as the twin behemoths flanked him. He paused to look at the heroes and said "Stark, you couldn't beat me with your regular toys, you think bigger toys are going to help you when I have the unstoppable force AND the immovable object under my control?"
Stark looked at many different readouts at once and was trying to figure out a way to break the mind control Loki had on the Hulk. Without breaking his concentration, he said "I don't know who you are, but Jarvis is picking up immense electrical fields coming from you. You think you can handle yourself?" MacGrath chuckled dryly and simply said "Yeah. I've fought bigger monsters."