Making Tony Stark an emotionally crippled fish-out-of-water and forcing him to MacGyver his way out of trouble is just so compelling. It's a classic formula: bring a powerful protagonist to their knees, actually break their knees, and make them claw their way back. If done right, it never fails.

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And the Mandarin, damn...it took huge balls to commit to that sleight of hand. I loved it. If the chances you take are smart, they will most likely work out, even if you cause a little nerd rage along the way.