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Team-up
open-in-new
<p>In <a href="/facts/Superhero/2UzUtlz9">superhero</a> <a href="/facts/Comic_book/xGFkPrMT">comic books</a>, a team-up is a <a href="/facts/Fictional_crossover/847DbpJ0">fictional crossover</a> where two or more superheroes or superhero teams who usually do not appear together work together on a shared goal. </p>