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We didn't call it a KO Lego this time because - as of this writing - we could not find a legitimate Lego version that this Power Armor copied - which is quite different from the KO Lego Tumbler that you can see here.
So for now we're classifying this as an original design. Anyway we really love it because you can use it to help envision a world where the Avengers failed to stop Ultron from triggering global extinction. The few surviving Avengers find themselves hard-pressed to turn back the tide of a world made of metal.
So Tony Stark suggests powering up the surviving Avengers: Thor, Bruce Banner (Who lost his Hulk powers trying to stop the fall of Sokovia) and Captain America - whose Shield was destroyed in the fall of Sokovia.
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Flying out from their secret base, the power-armored Avengers fight on to avenge a world that they failed to save.
Isn't the joy of having no backstory behind a toy fun?