Mandarin said that the dark Heart Crystal needed superhumans to power it, but Hawkeye was plugged into it, and he doesn't have any superpowers
Mandarin: One of the pitfalls of technology, Stark; There's always someone with a better mousetrap!
Iron Man: (Ruptures Mandarin's armor) Another pitfall: Sometimes you just blow a fuse!
Iron Man: Well well, looks like mister "Anti-technology" is sporting this year's line of exo-armor. Hypocrisy, anyone?
Mandarin: Please. I may be anti-technology, but I'm not a fanatic!
Mandarin: Power, Mandarin be thy only name!
Iron Man: I don't think so, you manicurist's nightmare!
Jim: All I could think of on short notice.
MODOK: You must carry me!
Jim: We said we'd help you, not adopt you!
Tony: Here's the deal: You help us out of here, and we bring back the energy you need to live and sleaze another day.
Tony: (To Jim): My life support's fading, your armor's teched out; What are we gonna do: Crawl up to The Mandarin and bite his ankles?
Iron Man: I don't get it, Modok. He treats you like dirt, and you still stick around!
Modok: I can't help it! Mandarin makes me laugh. I like him!
Iron Man: So do I. Behind bars!
Toon Disney Edit (Spoiler Alert):
After the Mandarin is defeated and he encounters the "Mountain Bandits" after they pin him and he states "Take the Rings" the scene is edited to remove one of the bandits putting his sword up to his hand implying they are going to cut it off.
Iron Man's new armor runs on bio-energy, and requires Tony's DNA to activate it.