hey guys, decided to share a battle that jumped in my head
Spider-man + Iron Man + Hulk are teleported to our universe, right now.
They get 2 weeks prep and everyone in the world helps them and supports (because they are freaking spider-man, iron man and Hulk in our real world!) so it's basically spider-man, tony and bruce (pre Marvel NOW/SpOck) and us, humanity of the year 2013
Sovereign - reaper from ME1
After that time, Sovereign comes in and starts destroying everything, and it's time to act. team 1 knowledge on the reapers comes from the Mass Effect 1, 2 and 3 games. everything in those games they know immediatly after arriving on Earth, without even playing them
EDIT: changed the OP to give team 1 a fighting chance