The Avengers, Spider-Man, and the Guardians together? Now this is a team-up . That's the sleekest Iron Man armor yet . I can't believe they're taking a teenage Groot into battle with Thanos . That big spider emblem on Spidey feels really unnecessary and distracting . He wants o make sure people don't think he's still Captain America, because Captain America doesn't go into battle with rolled sleeves .