It’s a classic trope – the cover shows a good guy gone bad, having defeated other heroes, only for the story within to reveal . . . it’s a doppleganger . . . or he’s mind-controlled . . . or the fallen heroes are the evil twins . . .
Mash-Up #177 JSA All-Stars vs Iron Man
Crisis on Earth-Prime 
Or….Or…..Iron Man’s actually evil because this is the Kang-controlled IM from The Crossing. Hmmmm
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